LED Mirror Light Manufacturer - Liteharbor Lighting Technology Co.,Ltd.
BeauMe- is the brand of Liteharbo Lighting Technology Co., LTD. (referred to as Liteharbor). Liteharbor locates in Foshan, Guangdong, China, which has great advantage in transportation and manufacturing. Liteharbor factory covers an area of 1,6000㎡ , and it is equipped with hardware factory, mold factory, carton factory, assembly plant and LED plant and other factories. BeauMe brand focus on LED mirror lamp product research and development, design, prod...
LED Mirror Light Manufacturer


Glasses with special cylindrical lenses are the most common way for lenticular astigmatism correction. According to the leading statistics that lead to ophthalmology, up to 80% of patients with vision prefer glasses of glasses for vision correction.
Glasses can be positive (more) or negative (less), which are selected according to the type of astigmatism. In the case of aqueous highs, the vessels induce uncomfortable: pain, fatigue. Very common cylindrical lenses for lenticular astigmatism correction are combined with lenses used to correct the nearby time short-sightedness or far-sightedness that can be accompanied by astigmatism.
It isn’t easy to choose something that can only be a highly qualified expert. It is important to remember that the selected vessels can cause excessive damage to the eyes and visual acuity.
As the glasses remain in the simplest visual calibration method, they have many disadvantages. The glasses can be wet and milked at the most inappropriate time without changing the person who carries them. But there is also a medical aspect of this problem. Above all, the vessels restrict the vision of the appearance and, often, distort the size and shape of the object.
In addition to the glasses, contact lenses are also used to modify astigmatism. In the past, those who have astigmatism are not available for soft contact lenses. At that time, the calibration of astigmatism can only be done with a solid contact lens. Today’s astigmatism compensation is based on the use of a special conversation contact lens. These lenses can have a TORIC surface on the front or rear of the lens. The contact lens with a TORIC front surface can compensate for a cornea, and a lenticular diameter of 4.5 D for incision flattening TORIC. The contact lenses with a back surface of the TORIC can modify the astigmatism of the cornea up to 6.0 D.
Contact lens screen some benefits:
- Contact lenses can modify high corneal astigmatism.
- The contact lens creates a minimum change in the field of vision and distortion of the retinal image.
- Contact lens allows optimal conditions for binary vision. In other words, it is a visual acuity with two eyes.
- The contact lens minimizes the typical optical aberration and the effect of the prism in glasses of glasses.
- Otherwise, contact lenses have their disadvantages.
Experts register examples often when the restaurant lens uses various complications in the form of inflammatory processes. If most Toric contact lenses’ thickness is large, the patient is inconvenient and extends the adaptation period. The eyes are very sensitive to these lenses and are faster than compared to standard soft lenses. Also, there was a case of complications, such as increasing the probability of the surface form of the cornea and distortion.
This growth is due to chronic oxygen deficiency of the cornea. Also, at different points, different indexes of the thickness of the O-ring can cause several optical aberrations (distortion).
Pay attention to the fact that many patients use a soft TORIC contact lens that suffers from a corneal shape. The interrupted use of the contact lens eliminates the problem (recovering the shape of the cornea). In some cases, changes may not be remarkable. The next selection of the following TORIC contact lenses or glasses modifications may occur, and more importantly, more important and more important, the estimates of the modifications Extractive excimer laser are more important.


Two Benefits Individuals Do Definitely Not Appreciate In Relation To LASIK Eye Medical ProcedureThe eye can be taken a look at with relative ease as to both its function and its structure. A functional assessment includes the capability to move in the orbit and the response of the student to light and accommodation.
The function of the eye may be checked in several ways. The patient may be asked to recognize illuminated letter or items of differing sizes on what is known as the Snellen chart.
On the other hand, the evaluation of the structural part of the eye may be made in numerous ways. Tension within the eyeball is measured by a "tonometer." In specific illness, specifically in glaucoma, the tension in the eyeball is increased considerably.
It needs to be well kept in mind that a client with an eye issue may have other problems. Frequently other physical conditions are primary and affect the eye as a consequence. The look of the eye can signal the physician and the patient to troubles in some disturbances of other parts of the body even prior to other symptoms provide themselves.
One's dependence on sight is emphasized when one deals with a short-lived or possible long-term loss of this essential sense. When restorative steps are sought, certain kinds of vision correction such as contact lenses or spectacles are prescribed.
On the other hand, some individuals are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.
For this reason, advanced surgeries were established to encourage decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.
Generally, LASIK eye surgical treatment is the short-term for "Laser-Assisted In Situ Keratomileusis." Like its concrete counterpart, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this type of surgical treatment, one's vision is fixed permanently.
With LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an "excimer laser."
The primary function of this surgical treatment is to produce a threadlike, rounded "flap" in the cornea utilizing a blade known as "microkeratome." In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.
Appeal vs. Disadvantages
In the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people need to know. Probably, the main reason this kind of eye surgery has ended up being well accepted is because the majority of its cases had been effective.
In spite of its success, there are still some disadvantages. Here is the list:
1. It is an operation used to the most delicate part of the eye
Due to the fact that LASIK eye surgery involves the operation of the retina, which is one of the most sensitive parts of the eye, a lot of individuals state that the operation can be extremely dangerous.
In other words, a easy error might nearly read more trigger an person's life time loss of sight. It is crucial to think about lots of elements before deciding whether LASIK eye surgery is the right restorative step one has to undergo.
2. It is not a perfect treatment
LASIK eye surgical treatment might correct your vision however it does not always mean that it can offer you a twenty-twenty. Even if analytical reports show that 70% of the patients may have 20/20 vision, this does not necessarily mean they have perfect vision also.
Provided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the ideal eye surgical treatment the way the majority check my site of people see it
Alternatively, the evaluation of the structural part of the eye might be made in numerous ways. It should be well kept in mind that a patient with an eye issue might have other issues. Typically other physical conditions are primary and impact the eye as a repercussion. The appearance of the eye can alert the doctor and the client to problems in some disturbances of other parts of the body even before other symptoms present themselves.
Like its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.


Hypermetropia (or hyperopia), commonly known as long sight or long sightedness, is a condition or refractive error in which light that enters the eye focusses behind the retina.
This is usually due to the eye being smaller than normal. When an object is brought closer to the eye the lens of the eye is required to change shape increasing its optical power to keep the object in focus.
If there is not enough power in the lens to keep the object in focus it will appear to be blurred. This can be at both distance and near but is particularly noticeable for near objects. The cause of hyperopia is typically genetic. It usually occurs in the early years of life.
What you need to do
Hypermetropia can be treated using corrective lenses, either spectacle lenses or contact lenses. There are many lenses that can be used to correct hypermetropia in a range of powers including hi-index lenses for the management of high degrees of hypermetropia
The spectacle corrective lenses have a positive optical power and are convex, which help the light to be focussed onto the retina instead of behind the retina providing a clear image.
There are also laser treatments (laser eye surgery or laser refractive surgery) or surgical options including clear lens extraction with a multifocal intra ocular lens or intraocular lenses (phakic intraocular lenses).


china Silicone Rubber Visual Inspection Equipment, with the slogan of China’s Zhizhi continued to be promoted in China, the function of visual inspection equipment is now more and more perfect, and it is also used by *** In all aspects of the industry.
So what is the visual inspection device? What can a visual inspection device do? ***, experienced in the field of image technology and machine vision inspection systems manufacturers development and manufacturing – Sputek to answer your questions.
The machine vision device can be said to be the eye of the machine. The main function is to make the machine look like a human, see things, visual inspection equipment, and then make judgments like the human brain.
In the process of production, manual inspection personnel must have a keen sense of making an accurate judgment on the quality of a product, so that defective products are not sent to consumers. Hands. However, the current production speed is very fast, the products are also relatively responsible, or the shortcomings are vague, the traditional labor is difficult to guarantee the production volume, but also ensure the quality of the products.
The use of visual inspection equipment for detection can just circumvent these problems. It does not cause any damage to both the observer and the observed person, expands the visual range of the human eye, and can work for a long time.
This article is from https://www.topvision.net/ .


The concentration sensor is used to measure the concentration of the liquid, and the concentration of the solution is converted into an analog signal output by optical path analysis by different refractive indices of the solutions of different concentrations.
Suitable inline real-time monitoring and control of liquid substance concentration in various industries
Cutting oil , mold release agent , quenching liquid , cleaning liquid , emulsion in the machining industry
Food , chemical , paper , tobacco , environmental protection
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Extrusion – Pressure, Temperature, Heating and Cooling Control2020-05-30
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Unimar is the trusted supplier for tower obstruction lighting systems. Unimar's extensive inventory includes tower obstruction lighting products that meet your specifications and comply with FAA obstruction light regulations.
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In addition to providing in depth training, Unimar's engineer and design staff offer after-hours technical support that's just a phone call away.
Unimar can also connect you with certified contractors for tower obstruction lighting installation.
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Unimar's engineers offer the tower obstruction lighting systems that are appropriate for your uses, including, but not limited to:
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Unimar offers a wide variety of obstruction light products. Unimar is the depended upon supplier of high intensity, medium intensity, low intensity, steady or flashing tower obstruction lighting.


Has purchasing the best lens for jewelry photography ever crossed your mind?
If you want to succeed as a commercial photographer or a jeweler, having this type of optics is something you must have.
Product photography, specifically jewelry, needs particular attention due to its delicate naturee, reflections, and materials that need to pop out correctly.
The internet is still not too helpful in guiding photographers through the market. Finding the proper lens tailored to the specific needs and niches is still tricky, and many potential buyers are left to roam in the dark.
Since I like the product and macro photography in general, I have decided to make a complication of high-quality optics, intending to help fellow photographers pick the right lens for themselves.
This is a macro lens from Sigma company that packs a massive punch for the buck and it offers super aperture,focal length and it is weather-sealed.
Sigma 105mm f/2.8 has an optical construction of 16 elements in 11 groups, with nine rounded diaphragm blades. The angle of view is 23.3 degrees, and a minimum focus distance is 1,02 feet, with a maximum magnification of 1x and a macro reproduction ratio of 1:1. It sports optical image stabilization in combination with a fast f/2.8 aperture. As with most macro lenses, it is difficult to shoot at the widest opening at every distance (in this case, the “macro distance”).
I advise you to have a lot of light when shooting your jewelry; although the aperture is wide enough to capture good images under dim lighting, I like to have a lot of light for macro purposes.
The depth of field the lens can pull off is fantastic, and it is one of the reasons why it is the best lens for macro photography. The object of shooting stays entirely in focus, with excellent detail retention and strong contrast, while the background is completely melted away.
The autofocus system of this macro lens for jewelry photography is high-speed and responsive. However, focusing from the front to the back of the range can be problematic. An additional plus is silence so that it won’t irritate. The following vital thing is OIS, which is of tremendous help, especially under bad lighting, when you don’t want to use high ISO value. The image quality is excellent, with a beautiful color palette and nicely worked-out blacks.
- Fast aperture
- Focus system
- No weather-resistance
Sony 90mm f/2.8-22 is a macro lens with a beautiful bokeh effect that delivers amazing images with rich details and it's worth the praise.
Sony 90mm f/2.8-22 has an optical design of 15 elements in 11 groups, with nine rounded diaphragm blades. It has an angle of view of 27 degrees, a minimum focus distance of 11,02 inches, a maximum magnification of 1x, and a 1:1 macro reproduction ratio.
The minimum focus distance is 0,92 feet, and the lens comes with optical image stabilization. The main reason why I put it on the best lens for jewelry photography is the incredible overall sharpness it can produce.
The level of detail:
I could preserve images superior to many more expensive competitors, and even at 2:1 crops, images were ready to be used professionally. Another critical thing is the bokeh effect. I tested it from an f/2.8 to an f/16 for macro (product purposes). At an f/2.8, it produces an amazingly circular bokeh effect, with the subject in tack focus and a significant amount of sharpness. At an f/16, bokeh is still quite good if you stay relatively close to the topic.
The color palette is also unique, with pleasant and vibrant tones that still look natural and a gorgeously balanced contrast. I also like the focus ON/OFF switches since it adds to the ergonomic experience, and the focus is accurate and fast to respond.
It is also possible to limit the focus to hunting in the macro range, although it comes at the price of a slower speed. Design-wise, the lens is incredible, with fine materials used in the manufacture and a great handheld feeling.
- Fast aperture
Image quality from this lens is phenomenal. You will meet very sharp images with wonderfully creamy bokeh produced by its 15 elements.
Canon 100mm f/2.8 is the best Canon lens for jewelry photography, offers an optical construction of 15 elements in 12 groups, with nine rounded blades and an angle of view of 24 degrees. The minimum focus distance is 11,81 inches, with a maximum magnification of 1x and a 1:1 macro reproduction ratio.
The lens is equipped with optical image stabilization and a removal & removable tripod collar. Among many great features, I want to pinpoint the manual focus under the live view that allows one to have precise control when shooting macro.
It is one of the reasons why I put it on the best lens for macro photography list. Optical image stabilization is somewhat noisy, but regardless of it, its help in capturing beautiful images is extraordinary. The aperture is undoubtedly good, with quite a sharpness at the maximum opening, and it is even better stepped down. The depth of field is beautiful, and at f/2.8, it is possible to capture fantastic product shots.
The overall quality:
In terms of sharpness, color rendering, contrast, and distortion control, I deserve every praise since I have yet to find any flaws. I also didn’t have issues with flares and ghosting (although I mainly tested the lens indoors). From an ergonomic perspective, I like the AF/MF and OSS ON/OFF switches that improve the experience, and the focus ring is relatively smooth.
- Excellent design
- Fast aperture
- Image quality
Nikon 105mm f/2.8G is one of the best macro lens that is designed for macro photography and it delivers lovely photos with beautiful bokeh.
Nikon 105mm f/2.8 has an optical design of 14 elements in 12 groups, with nine rounded diaphragm blades. The angle of view is 23°20′, with a minimum focus distance of 1,03 feet, a maximum reproduction ratio of 1.0x, and a macro reproduction ratio of 1:1. It also has optical image stabilization and a fast aperture, and it delivers extraordinary low light performance.
The general sharpness is one of the reasons why I put it on the best lens for jewelry photography. These optics can produce beautiful macro product shots from a close-up distance without causing a focus hunt.
Thanks to the shallow depth of field, it defocuses backgrounds while remaining extremely sharp when focused on subjects. The focus system is incredibly responsive and delivers accurate results at a breakneck speed. I also tested it for shooting live issues, and the versatility is excellent.
It is possible:
To shoot great portraits with this lens. The image quality is gorgeous, with a natural color palette, beautiful tones, and deep contrast. The vibration reduction helps in low-light situations and achieves up to four stops of image stabilization. Design-wise, the lens is packed in a compact and solidly manufactured body with an acceptable weight for its class.
- Versatile focal length
- Fast aperture
- Solid focus
- The design could be more robust
Tokina 100mm f/2.8D has excellent bokeh and even comparable to fast primes.
Tokina 100mm f/2.8 packs an optical construction of nine elements in eight groups with eight diaphragm blades. The angle of view is 24 degrees, with a minimum focus distance of 11,81 inches, 1x maximum magnification, and a macro reproduction ratio of 1:1.
Although it lacks optical image stabilization, it is equipped with a fast aperture that gives a rock-solid low-light performance. I like the manual and autofocus switch since it is pretty innovative and easy to grasp.
I would say:
It is one of the reasons why I put Tokina as the best lens for jewelry photography. When shooting macro shots, especially jewelry, I recommend using a manual mode, and the same advice goes for shooting portraits. It allows one to lock the focus and avoid autofocus hunting issues. The overall sharpness levels are exquisite. The lens shows excellent image quality, with little distortion and phenomenal vignetting control.
I am also yet to notice issues with chromatic aberrations and ghosting. The aperture of an f/2.8 is sufficient to produce stunningly bokeh results while being tack-sharp where it is needed, and it allows one to capture great shots under dim lighting. From a design point of view, I like the all-black finish and the robustness of the lens, especially since it feels good in my hands.
- Fast aperture
- Manual focusing
- Overall sharpness
- Lack of OIS
Buying the lenses for jewelry photography can be daunting, but it can be a solid investment if you know the correct principles and are willing to follow basic guidelines.
No matter your shooting style, what type of jewelry you work with, or what manufacturer you like the most – if you pick any of the lenses from the article, your work will improve.
After reading this article and learning something new, it’s time to choose a lens that will boost your photography. If you’re still unsure which lens is best for you, we recommend trying this one.
You can check out some of our other guides, such as the lens guide for fashion photography and the five best lenses for vlogging.
Disclaimer: “As an Amazon Associate I earn from qualifying purchases.”


canon fish eye lens is a wide-angle lens that creates a unique and distorted circular perspective. This lens is popular among photographers who want to capture creative and artistic images with a distinct visual impact.
With a wide aperture and a short focal length, the canon fish eye lens allows for a wide field of view and emphasizes curvature, resulting in a distinctive fish-eye effect. Whether you’re shooting landscapes, architecture, or creative portraits, this lens can add a refreshing and dynamic element to your photography.
By expanding your perspective and pushing the boundaries of traditional composition, the canon fish eye lens unlocks a world of creative possibilities.
Understanding The Canon Fish Eye Lens
A Brief Overview Of What A Fish Eye Lens Is
A fish eye lens is a unique type of camera lens that offers an exceptionally wide-angle view. It is named after its resemblance to the eye of a fish and is known for its distinct curvature and exaggerated perspective. Fish eye lenses are highly popular among photographers and filmmakers for their ability to capture expansive scenes with a creative and captivating effect.
- Fish eye lenses have an extremely short focal length, typically ranging from 8mm to 16mm.
- They feature a wide field of view, often exceeding 180 degrees.
- Fish eye lenses produce a characteristic barrel distortion, resulting in a rounded appearance.
- With a fish eye lens, you can capture images with a sweeping, all-encompassing feel.
Why The Canon Fish Eye Lens Is A Popular Choice Among Photographers And Filmmakers
The canon fish eye lens has gained significant popularity within the photography and filmmaking communities for its remarkable features and exceptional image quality. Let’s take a closer look at why this lens is a top choice:
Superior optical performance: The canon fish eye lens offers outstanding image quality with sharpness, clarity, and minimal distortion.
Wide range of applications: This lens is versatile, making it suitable for various genres of photography and cinematography, including landscape, architecture, interior, and creative experimentation.
Creative possibilities: By employing a canon fish eye lens, photographers and filmmakers can explore unique perspectives, create dramatic effects, and experiment with composition.
Durability and reliability: Canon lenses are renowned for their robust build quality and reliability, ensuring longevity and consistent performance.
Compatibility with canon camera systems: The canon fish eye lens seamlessly integrates with canon dslr and mirrorless camera systems, optimizing functionality and ease of use.
Auto focus capabilities: The canon lens provides fast and accurate auto focus, allowing photographers and filmmakers to capture fleeting moments swiftly.
Exceptional low-light performance: With wide maximum apertures, canon fish eye lenses excel in low-light conditions, delivering impressive results even in challenging lighting situations.
Compact and lightweight design: Canon has designed its fish eye lenses to be compact and lightweight, enabling photographers and filmmakers to carry them effortlessly and use them in various shooting environments.
The canon fish eye lens truly sets itself apart, offering unparalleled optical performance, creative freedom, and reliable functionality for both professional and amateur photographers and filmmakers.
Capturing Unique Perspectives
Expanding Your Creative Possibilities With A Fish Eye Lens
Looking to add a unique and creative touch to your photography? The canon fish eye lens might just be the perfect tool for you. With its distinct visual effects and unparalleled wide-angle capabilities, this lens allows you to capture captivating images from a whole new perspective.
Let’s explore how the canon fish eye lens can help you expand your creative possibilities and transform your photography.
How The Canon Fish Eye Lens Can Help You Capture Distorted Yet Captivating Visuals:
Unmatched wide-angle view: The canon fish eye lens boasts an incredible field of view, capturing a whopping 180 degrees. This allows you to fit more into your frame, whether you’re shooting landscapes, architecture, or even tight indoor spaces.
Distorted and dramatic perspective: One of the most distinctive features of the fish eye lens is its ability to create a visually striking distortion. By curving straight lines and bending the edges of your images, this lens adds a unique and captivating twist to your shots. The exaggerated curvature can make ordinary scenes appear extraordinary and surreal.
Creative compositions: The fish eye lens opens up endless opportunities for creative compositions. Experiment with framing and positioning your subjects in unconventional ways, taking advantage of the lens’ distortion to create compelling and dynamic images. This lens gives you the power to capture eye-catching visuals that stand out from the crowd.
Close-up detail: While fish eye lenses are primarily known for their wide-angle capabilities, they can also be used for up-close photography. With its minimum focusing distance, the canon fish eye lens allows you to capture intricate details and textures with excellent sharpness and clarity. Explore the world of macro photography like never before.
Versatility in different genres: The canon fish eye lens is not limited to a specific genre of photography. It can be effectively used in various fields, such as portraits, street photography, event coverage, and even astrophotography. Its ability to distort and transform scenes adds a unique touch to any style or subject matter.
Enhanced creativity in post-processing: When paired with powerful editing software, the canon fish eye lens opens up even more possibilities for creative expression. Utilize the lens’ distortion to experiment with different edits, manipulating perspectives, and transforming your images into visually stunning artworks.
Get ready to push the boundaries of your photography with the canon fish eye lens. With its wide-angle view, distorted perspectives, and endless creative possibilities, this lens will enable you to capture visually captivating images that will leave a lasting impression.
Step out of the ordinary and into the extraordinary with the canon fish eye lens.
Utilizing Distortion As An Artistic Tool
Embracing The Unique Distortion Effects Of A Fish Eye Lens
When it comes to capturing unique and captivating photographs, photographers often turn to different lenses to achieve their desired results. One such lens is the fish eye lens, known for its distinct distortion effects. While some may see this distortion as a limitation, it can actually be utilized as an artistic tool to create extraordinary visuals.
We will explore how to embrace and use the distortion effects of a fish eye lens to elevate your photography game.
How To Use Distortion To Create Dynamic And Eye-Catching Compositions
A fish eye lens offers a wide-angle view, capturing a larger field of view compared to a standard lens. The distortion effects of the fish eye lens can create a sense of depth, exaggeration, and a unique perspective in your photographs.
Here are some key points to keep in mind when using distortion as an artistic tool:
Experiment with different angles and subjects: The distortion effects of a fish eye lens can be especially pronounced when you shoot close to your subject. Try different angles and positions to find the most interesting composition.
Emphasize leading lines and curves: The distortion can enhance leading lines and curves in your photographs, creating a visually appealing effect. Look for architectural elements, natural formations, or patterns that can be accentuated using the lens.
Play with symmetry and balance: The distortion effects can create a sense of symmetry or asymmetry in your compositions. Use this to your advantage by finding subjects or scenes that have interesting symmetry or creating an intentional imbalance for added visual interest.
Highlight foreground elements: The exaggerated distortion at the edges of the frame can create a frame within a frame effect. Use this to your advantage by placing interesting elements in the foreground, adding depth and dimension to your photographs.
Capture unique perspectives: The fish eye lens allows you to capture perspectives that are not possible with other lenses. Use this to your advantage by getting close to your subject and incorporating interesting foreground elements to add a sense of depth and scale.
By embracing the unique distortion effects of a fish eye lens, you can add a new dimension to your photography. Experimenting with different angles, subjects, and compositions will allow you to create dynamic and eye-catching visuals that stand out from the crowd.
So, next time you pick up your camera, don’t be afraid to embrace the distortion and let your creativity soar.
Enhancing Depth And Dimension
Creating A Sense Of Depth And Dimension With The Canon Fish Eye Lens
The canon fish eye lens is a powerful tool that can enhance your photography by adding depth and dimension to your images. Whether you’re capturing landscapes, architecture, or unique perspectives, this lens can help you create stunning visuals that stand out.
Here are a few tips and techniques for maximizing the impact of your visuals using the canon fish eye lens:
Experiment with different angles: The wide-angle view of the fish eye lens allows you to capture a wider field of view, resulting in a more immersive and expansive image. Try shooting from different angles to play with perspectives and find the most visually interesting composition.
Emphasize leading lines: Leading lines are a strong compositional element that can create depth and guide the viewer’s eye through the image. With the fish eye lens, the exaggerated perspective can make leading lines more prominent. Look for lines in your scene, such as roads, fences, or architectural features, and use them to lead the viewer into the image.
Include foreground elements: Adding interesting foreground elements can instantly enhance the depth of an image. The fish eye lens has a unique ability to bring foreground objects closer to the viewer, creating a more immersive experience. Look for interesting objects or textures that can add depth and dimension to your composition.
Explore distortion creatively: The distortion effect of the fish eye lens can be creatively used to your advantage. While distortion may not be ideal for certain subjects, it can add a unique and artistic touch to others. Experiment with different subjects and compositions to see how distortion can enhance the overall atmosphere and mood of your images.
Use reflections to your advantage: Reflections can add a sense of depth and dimension to your images, and the fish eye lens can help you capture them in a unique way. Whether it’s a reflection in water, glass, or shiny surfaces, incorporating these reflections into your composition can create captivating visuals.
Pay attention to lighting: Lighting plays a crucial role in creating depth and dimension in any photograph. With the wide-angle view of the fish eye lens, light sources can become more prominent and add an extra layer of interest. Pay attention to how light interacts with your subjects and use it strategically to enhance the three-dimensional feel of your images.
Capture wide open spaces: The fish eye lens is particularly effective in capturing wide open spaces. Whether it’s a vast landscape or an expansive sky, the lens can help you convey the vastness and scale of your surroundings, adding a sense of depth and dimension to your images.
Experiment with editing: Editing can further enhance the depth and dimension captured with the canon fish eye lens. Play with contrast, shadows, and highlights to bring out the details in different parts of the image. Additionally, exploring black and white conversions or adding a vignette effect can also help create a more dramatic and immersive visual experience.
Practice and experiment: Like any other photography technique, mastering the use of the fish eye lens takes practice and experimentation. Take the time to familiarize yourself with the lens and its capabilities, and don’t be afraid to try new ideas and compositions. The more you practice and experiment, the better you’ll become at creating captivating visuals with the canon fish eye lens.
Remember, the canon fish eye lens is a powerful tool that can add depth and dimension to your images, but it’s up to you as the photographer to utilize it creatively. With experimentation and practice, you can unlock the full potential of this lens and create visually stunning photographs that truly stand out.
Experimenting With Composition
Breaking Traditional Composition Rules With A Fish Eye Lens
If you’re looking to add a unique and eye-catching element to your photography, experimenting with composition using a fish eye lens can offer endless creative possibilities. Traditionally, composition rules like the rule of thirds and leading lines are followed to create visually appealing images.
However, with a fish eye lens, you have the opportunity to break these rules and create unconventional and captivating compositions. Here are some key points to consider when exploring the world of fish eye lens composition:
Distortion as an artistic tool: One of the main characteristics of a fish eye lens is its extreme amount of distortion. Rather than considering this distortion as a limitation, embrace it as a creative tool. The exaggerated curves and unusual perspectives can add a sense of drama and surrealism to your images.
Emphasizing the subject: With a fish eye lens, you can place your main subject at the center of the frame and have the distorted surroundings wrap around it. This technique can create a striking visual impact and draw attention to your subject, making it the focal point of the composition.
Playing with angles and lines: Experiment with different angles and lines to take advantage of the fish eye lens’s ability to exaggerate straight lines. Tilt the camera or position yourself at a low or high angle to create dynamic diagonals or verticals that can lead the viewer’s eye through the image.
Including the surroundings: A fish eye lens has an incredibly wide field of view, allowing you to capture not only the main subject but also the surrounding environment. Use this to your advantage by incorporating interesting elements in the foreground or background to provide context and add depth to your composition.
Framing with curves: The fish eye distortion can create natural curves that can be used as framing elements in your composition. Look for arches, bridges, or any other curved structures that can enhance the overall visual interest of your image.
Fish eye lenses offer endless creative opportunities to break free from traditional composition rules and explore new artistic horizons. By embracing distortion, playing with angles and lines, including the surroundings, and incorporating framing elements, you can create visually stunning and engaging compositions that command attention.
So grab your fish eye lens and step outside the conventional to unleash your creativity.
Emphasizing Leading Lines And Curves
Using Leading Lines And Curves To Your Advantage With A Fish Eye Lens
The canon fish eye lens is a powerful tool that allows photographers to capture unique and eye-catching images. One of the key advantages of this lens is its ability to emphasize leading lines and curves in a photo, adding depth and interest to your compositions.
Whether you’re shooting landscapes, architecture, or even portraits, utilizing leading lines and curves can take your photography to the next level. Here’s how the canon fish eye lens can help you make the most of these elements:
**enhancing leading lines:**
- Leading lines are powerful compositional tools that guide the viewer’s eye through an image, creating a sense of movement and direction. The fish eye lens amplifies the effect of leading lines, making them more prominent and dynamic.
- The lens’s ultra-wide field of view captures a wide range of details, allowing you to incorporate leading lines into your shots with ease. From converging lines on a road to winding trails through a forest, the fish eye lens enhances the impact of these lines, drawing attention to the subject and creating a visually engaging composition.
- With the fish eye lens, you can experiment with different subjects and scenes to make the most of leading lines. Whether you’re working with natural elements like rivers or man-made structures like bridges, the lens will emphasize the lines, giving your photos a striking and captivating quality.
- Curves add a sense of elegance and fluidity to an image, and the fish eye lens accentuates these curves, creating unique and visually appealing compositions.
- Whether you’re photographing architecture with sweeping curves or capturing the contour of a landscape, the fish eye lens widens the curves, making them more pronounced and eye-catching.
- When shooting portraits, the fish eye lens can be used creatively to accentuate the curvature of a face or the contour of a body, resulting in abstract and artistic images that stand out.
- By paying attention to the curves in your subject matter and integrating them into your composition with the fish eye lens, you can create visually pleasing and impactful photographs.
Overall, the canon fish eye lens is a fantastic tool for photographers who want to emphasize leading lines and curves in their images. By harnessing the lens’s unique perspective and ultra-wide field of view, you can capture stunning and dynamic compositions that truly stand out.
Whether you’re photographing architecture, landscapes, or people, the fish eye lens will help you make the most of these elements, adding depth and interest to your photographs.
Working With Close-Up Shots
Exploring The Unique Close-Up Capabilities Of The Canon Fish Eye Lens
If you’re looking to capture stunning close-up shots with unique perspectives, the canon fish eye lens is a must-have addition to your photography gear. With its wide-angle view and distinct distortion, this lens allows you to get up close and personal with your subjects, revealing intricate details and textures that you might otherwise miss.
Tips For Capturing Stunning Details And Textures Up Close:
Use the right focus: When shooting close-up with the canon fish eye lens, it’s essential to pay attention to your focus point. Experiment with different focal lengths and aperture settings to achieve the desired level of detail.
Get up close and personal: One of the key advantages of the fish eye lens is its ability to capture objects just inches away from the camera lens. Take advantage of this unique feature by exploring the textures, patterns, and nuances of your subject up close.
Play with perspective: The fish eye lens excels in creating distortion and unique perspectives. Use this to your advantage by positioning your subject in a way that emphasizes its shape or creates an unconventional composition.
Experiment with lighting: Close-up shots allow you to manipulate lighting to enhance details and textures. Utilize natural light or experiment with creative lighting setups to create dramatic effects and emphasize specific elements of your subject.
Pay attention to backgrounds: When shooting close-up, it’s important to consider the background. Look for complementary colors, textures, or contrasting elements that can enhance the overall visual impact of your shot.
Be patient and observant: Close-up photography requires a keen eye for detail and patience. Take the time to study your subject, notice the smallest nuances, and wait for the perfect moment to capture the shot.
Try different angles: Explore different angles and perspectives to add depth and interest to your close-up shots. Don’t be afraid to experiment and get creative with your compositions.
Use macro accessories: To further enhance the close-up capabilities of the canon fish eye lens, consider using additional macro accessories such as extension tubes or close-up filters. These accessories allow you to get even closer to your subjects, revealing microscopic details and textures.
Post-processing techniques: Once you’ve captured your close-up shots, explore post-processing techniques to further enhance the details and textures. Experiment with sharpness, contrast, and color adjustments to create stunning, eye-catching images.
Practice and experiment: Like any aspect of photography, mastering the art of close-up shots takes practice and experimentation. Don’t be afraid to try new techniques, learn from your results, and continuously refine your skills.
With the canon fish eye lens and these tips in mind, you’ll be well on your way to capturing stunning close-up shots that highlight the intricate details and textures of your subjects. So grab your camera, get up close, and let your creativity soar!
Achieving A 360-Degree Perspective
Immersing Your Audience With A 360-Degree Perspective
Have you ever wanted to capture breathtaking panoramic shots that immerse your audience in a truly unique perspective? Look no further than the canon fish eye lens. With its distinctive curved shape, this lens allows you to achieve a 360-degree view, giving your photos a creative edge.
Let’s delve into some techniques for capturing stunning panoramic shots with the canon fish eye lens.
Techniques For Capturing Panoramic Shots With The Canon Fish Eye Lens
Choose the right settings: To fully utilize the capabilities of the canon fish eye lens, it’s essential to set your camera to manual mode. This will allow you to have complete control over the exposure settings and focus, resulting in better panoramic shots.
Find your focal point: When composing your shot, it’s crucial to identify a focal point that will anchor the entire scene. This can be a person, a building, or even a unique object that catches the viewer’s attention. By placing your focal point strategically, you can guide the viewer’s eye through the entire 360-degree frame.
Experiment with angles: One of the advantages of the canon fish eye lens is its ability to capture unique angles that can add drama and depth to your photographs. Play around with different perspectives, such as shooting from a low angle or even from above, to create visually engaging images.
Mind the distortion: The curved shape of the canon fish eye lens can result in distortion around the edges of your images. Embrace this distortion as a creative element rather than trying to eliminate it entirely. It can add a surreal and dynamic feel to your photos, enhancing the 360-degree perspective.
Use natural frames: Look for natural frames within your environment that can further enhance the immersive experience. This could include doorways, windows, or even tree branches. By using these frames strategically, you can draw the viewer’s attention to the central focal point while adding depth and context to your shots.
Experiment with long exposures: Long exposure photography can add a sense of motion and drama to your panoramic shots. Try using a slow shutter speed to capture moving subjects, such as waves or people walking, while maintaining the 360-degree perspective. This technique can result in captivating and dynamic images.
Post-processing magic: Once you’ve captured your panoramic shots, don’t forget to unleash your creative side during post-processing. Experiment with editing tools to enhance colors and contrast, further accentuating the unique qualities of the fish eye lens. Remember to keep the edits subtle and natural-looking for a more visually pleasing result.
Now that you have a grasp of the techniques for capturing panoramic shots with the canon fish eye lens, it’s time to pick up your camera and set off on an adventure. With the ability to immerse your audience in a 360-degree perspective, you’ll be able to create truly memorable and impactful photographs that will captivate viewers.
Overcoming Challenges And Limitations
Addressing Potential Challenges And Limitations Of Using A Fish Eye Lens:
Using a fish eye lens can be an exciting way to capture unique and creative photographs. However, there are some challenges and limitations that you may encounter when using this type of lens. Let’s explore these challenges and discuss how you can overcome them to get the best results possible.
Distortion: One of the main challenges of using a fish eye lens is the significant distortion it can create. This distortion causes straight lines to appear curved or bent, which may not be desirable in certain situations. However, you can address this challenge by following these tips:
Keep the subject at the center: Placing the subject at the center of the frame can minimize the distortion effect.
Avoid straight lines near the edges: By avoiding straight lines near the edges of the frame, you can reduce the noticeable distortion.
Image stretching: Another limitation of fish eye lenses is the stretching of objects near the edges of the frame. This can make them appear unnaturally elongated. To mitigate this issue, consider the following tips:
Position the subject away from the edges: By placing the main subject away from the edges, you can minimize the stretching effect on important elements of your composition.
Experiment with different shooting angles: Changing your shooting angle can help you find a perspective that minimizes the stretching effect while still capturing the desired scene.
Limited framing options: Due to the extreme field of view of fish eye lenses, it can be challenging to frame your shot the way you want. To overcome this limitation, try these techniques:
Experiment with composition: With a fish eye lens, you have more possibilities for creative compositions. Don’t be afraid to experiment and explore different angles and perspectives.
Crop in post-processing: If needed, you can crop your image in post-processing to eliminate unwanted elements and fine-tune the composition.
Vignetting and lens flare: Fish eye lenses are prone to vignetting (darkening at the edges of the frame) and lens flare (unwanted light artifacts). While these effects can add a unique touch to your photos, they may not always be desirable. Consider these suggestions:
Use a lens hood or shade: Using a lens hood or shade can help reduce the occurrence of lens flare and minimize vignetting.
Adjust your shooting position: Experiment with different shooting angles to find positions that minimize the occurrence of these effects.
Limited focal length versatility: Fish eye lenses typically have fixed focal lengths, which can limit their versatility in certain situations. To overcome this limitation, consider using the fish eye lens in combination with other lenses or exploring creative ways to incorporate this unique perspective into your photography.
Remember, while there may be challenges and limitations when using a fish eye lens, embracing and working with these characteristics can lead to stunning and visually striking images. With practice and experimentation, you can overcome these challenges and achieve the desired results.
Frequently Asked Questions Of Canon Fish Eye Lens
What Is A Fish Eye Lens And What Does It Do?
A fish eye lens is a specialized wide-angle lens that captures an extremely wide field of view, up to 180 degrees or even more. It creates a distinct, curved perspective with a unique distortion effect, allowing you to capture unique and creative images.
How Does A Canon Fish Eye Lens Work?
A canon fish eye lens works by using a shorter focal length and a curved optical element, which allows it to capture an expansive 180-degree field of view. The lens design bends light rays to create the characteristic fish eye effect, resulting in a curved, distorted image that can add drama and creativity to your photos.
What Are The Advantages Of Using A Fish Eye Lens?
Using a fish eye lens opens up a whole new creative world in photography. It allows you to capture unique, exaggerated perspectives and distortions, giving your images a fun and artistic touch. It’s perfect for capturing wide landscapes, architectural shots, and creating dramatic and dynamic compositions.
Can I Use A Fish Eye Lens For Everyday Photography?
While a fish eye lens can be used for everyday photography, it may not always be the ideal choice. The distinctive wide-angle distortion can be too pronounced for certain subjects or scenes, resulting in a less natural-looking image. However, if you enjoy experimenting with creative perspectives, a fish eye lens can add excitement to your everyday shots.
Are Fish Eye Lenses Only Suitable For Specific Camera Models?
Fish eye lenses are typically designed to fit specific camera mounts, including canon. So, if you have a canon camera, you can find canon fish eye lenses specifically made for your camera model. Just make sure to check compatibility and choose a lens that is designed for your particular camera mount.
What Are Some Tips For Using A Fish Eye Lens Effectively?
To make the most of your canon fish eye lens, consider the following tips:
– experiment with different angles to create unique compositions. – be mindful of lens flare, as wide angles are more susceptible to it. – get up close to your subjects to emphasize distortion and add impact. – use the lens to capture sweeping landscapes or dramatic architectural shots. – don’t be afraid to embrace the lens’s unique characteristics and have fun with your photography.
To sum up, the canon fish eye lens is an exceptional tool for photographers and videographers alike. Its innovative design and wide-angle capabilities allow for creative and unique perspectives that can truly enhance visual storytelling. With its high-quality construction and precise optics, this lens provides sharp and distortion-free images, ensuring professional-grade results.
Whether you’re capturing dramatic landscapes, immersive interiors, or stunning portraits, the canon fish eye lens offers a versatile solution that pushes the boundaries of creative expression. Moreover, its compact and lightweight design makes it a great addition to any photographer’s gear collection, enabling easy transportation and quick deployment in the field.
With its remarkable performance and outstanding reputation, the canon fish eye lens is a must-have accessory for anyone seeking to take their photography or videography to the next level.


Guidelines for Photograph the Sun – Capturing the Pure Essence!
The sun is a flagrantly poor photographic target because of its extreme brightness and constant emissions of damaging ultraviolet and infrared radiation. But if you have the right equipment, the photograph the sun can be a challenging and rewarding subject.
The most important thing about viewing and shooting the sun is eye-safety. You don’t see the sun through any optical instrument without proper filtration. If you are not careful, it would permanent damage to your eye.
Here is the perfect guide for photographing the sun.
Basic Solar Photography Gear
Solar Viewing Glasses
While aiming your camera at the bright sun, you will need a pair of solar viewing glass. Photographing the sun you will need to use some special filter. Using a large size lens or telescope, it will give good details and a tracking mount is helpful.
Tripod will help you to get the sharpest possible image. If you filter with a solar filter, your shutter speeds will be slower. With the super-telephoto focal length lens, telescope or spotting scope, you will get extra stability of a tripod.
Remote Shutter Release
A remote shutter release will help you to reduce the vibrations when firing your camera on a tripod.
One of the popular ways to photograph the sun and solar eclipses are Digiscoping. Most telescopes and spotting scopes enable cameras to be affixed to the scopes through adapters.
The major benefit of digiscoping is that you can achieve the high levels of magnification without much of the expenses of an exotic photographic telephoto lens.
When pointing camera at sun, you will need a solar filter for your camera and lens. You should always prefer a properly designed filter like neutral density filters. This is because these filters are only designed for viewing the sun and is designed not only to dim the sunlight but also protect your eyes and equipment from ultraviolet and indicated radiation.
Mylar While-light Solar filters come in various sizes and shapes. It looks like around and has tether holes to secure to your camera and lens. Some people using sheets of #14 welder’s glass which mount and or held in front of the camera.
The intermediate filter is designed for solar imaging which mounts between your camera and lens.
When photographing the sun, you will determine the camera and exposure settings. There are several variables like filter type and strength, focal length, the brightness of the sun and time of the year.
- Shutter Speed
The sun is very far away. When shooting the sun, you will want a quick shutter to freeze the action and neglect the motion blur. While using tripod-mounted super telephoto lenses, you should keep your shutter period as short as possible.
You have to able to photograph the sun at your camera’s native ISO setting. The ISO setting is usually around ISO 100 or ISO 200 which depends on your manufacturer and your camera model. Reduce the frame movement you need to bump up your ISO that depends on the lens and filter.
Using various apertures will give a variety of looks to choose from when you are editing. After setting your ISO and shutter speed, you have to adjust your aperture to control exposure. Using the solar filter, the sun will be the only thing visible in the frame, so you people use spot metering and keep your lens aperture in the sweet spot and then the sun in the center of the frame.
The process of Photograph the Sun
Photographing the sun is the simplest process but the execution will be a challenged one.
Gear up – check tripod, camera, lens, solar filter, remote release.
If you are working at long focal lengths and high magnification, aiming into the sky at a relatively small target is difficult. With the camera aimed at the sun, you have to adjust your aperture, shutter speed, ISO and focus. Now, it is time to start shooting. Discharge a few frames and use image-stacking software to blend more detailed images.
If you point a camera at the sun, does it damage the camera?
Every photographer asks “will the sun damage my camera?” while they photography the sun
Don’t worry! It depends on the camera and the situation. The important reason to be careful when photographing a camera at the sun is that the camera lens can act as a magnifying glass and focus the sun rays into a small area on the shutter of the camera. If you place it in a long enough, it can burn a hole in the shutter or aperture of the lens itself.
So, you don’t keep it in the same position for a long period of time. If you are using digital or video cameras, the sensor is overloaded and the sun causes some blooming problems. If you use older cameras, it can cause permanent damage. Otherwise, if using a newer camera, there is only temporary.
Don’t focus the sun with your naked eyes. If you do, permanent damage to your eyesight and even blindness may happen. While viewing the sun, you should wear a solar viewing glass.
As well as don’t point a camera at the sun unless the optics are fitted with a certified solar filter. Optics can magnify the intensity and brightness of sunlight and can cause damage to your equipment.
Don’t look at the sun through the viewfinder of a rangefinder camera, because the optical viewfinder will not protect your eyes from the sun’s damaging light.
Use only live view or an electronic viewfinder and don’t point an unfiltered digital camera at the sun because of the possibility of damaging the sensor with concentrated, unfiltered sunlight.
Take perfect photos of the sun without damaging you and your camera and lens. Taking pictures of the sun at any time with these guidelines and move around and take lot of pictures.


LED main headlight.
BMW Motorrad has been a pioneer when it comes to motorcycling safety for decades. Thanks to its innovative strength, the manufacturer quickly established itself as a trendsetter in this field, and will continue to achieve new benefits when it comes to motorcycling safety in the future. The latest example for BMW Motorrad's innovative strength in this field is the full-LED headlight with integrated daytime riding light, which was available for the first time in series production motorcycle- the R 1200 GS. This LED main headlight illuminates the road with a hitherto unmatched light clarity as the only one of its kind in the world. The LED for the high-beam headlights is vastly different and has a strong light intensity with its two glass lenses. Furthermore, the optional accessory also has a tail lamp, which provides an even better rear view with its two bars.


Zheng, Y.; Wang, Q. & Doerschuk, P. C. Three-dimensional reconstruction of the statistics of heterogeneous objects from a collection of one projection image of each object. Journal of the Optical Society of America. A, Optics, image science, and vision, 2012, 29, 959-970
An estimation problem for statistical reconstruction of heterogeneous three-dimensional objects from two-dimensional tomographic data (single-particle cryoelectron microscope images) is posed as the problem of estimating class probabilities, means, and covariances for a Gaussian mixture where both the mean and covariance are stochastically structured. Both discrete (i.e., classes) and continuous heterogeneity is included. A maximum likelihood solution computed by a generalized expectation-maximization algorithm is presented and demonstrated on experimental images of Flock House Virus.


Olympus has revealed new 750-300mm super telephoto lens. This lens if especially build for Olympus PEN and OM-D ranges.
This f/4.8-6.7 lens of Olympus offers an equivalent focal length of 150 to 600mm in terms of 35mm, thus enabling to capture the stills of distant objects.
Although the lens is especially designed for OM-D and PEN series of cameras, but it is boast leading technology just like predecessor. The newest technology of MSC mechanism and advanced ZERO (Zuiko Extra-low Reflection Optical) lens coating enable to shoot amazing photos.
The Super ED (Extra-low Dispersion), ED and HR (High Refractive index) lens reduces the ghosting effect and flare across the whole zoom of the camera, even in high brightness environment the result is really very promising.
A circular aperture is fitted to achieve high quality smooth effects in your stills, focusing the object and defocusing the background. The autofocus mechanism is equally promising, it is extra fast thanks to MSC (movie and still compatible) technology which is exceptional in this case.
As Panasonic camera also includes Micro Four Thirds format, the lens is also compatible with G series compact cameras of Panasonic.
The price of M.ZUIKO ED 75-300mm f/4.8-6.7 II lens will be $499.99, which as the company promise is really adjustable for this large distant camera lens comparable to previous lenses.


AIR OPTIX® COLORS contact lenses combine beautiful color with a highly breathable material for your eyes, and a smooth surface for comfortable lens wear. The unique 3 in 1 color technology blends with the eye color to provide a beautiful, natural appearance. AIR OPTIX® COLORS contact lenses are available in a full range of beautiful colors.
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Unique moisture agent that helps lubricate the lens for all day comfort from the start.
AIR OPTIX® Colors breathable contact lenses deliver an advanced combination of oxygen and moisture for a healthy, natural feeling. The lens also offers excellent all-day comfort right from the start. Clinical research shows the lens sustains its performance through a month of wear.


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Stanford photo scientists are out to reinvent digital photography with the introduction of an open-source digital camera, which will give programmers around the world the chance to create software that will teach cameras new tricks.
The result is that
camera performance will be no longer be limited by the software that comes pre-installed by the manufacturer. Virtually all the features of the Stanford camera – focus, exposure, shutter speed, flash, etc. – are at the command of software that can be created by inspired programmers anywhere


The Beam Reflector is used to extend the range of energy beams. Without using a Beam Reflector, energy beams have a maximum range of 16 blocks. With Beam Reflectors where needed, the beam can be extended indefinitely.
The Beam Reflector can also change the direction of the beam: it will always send the beam to the next Beam Receiver or Beam Reflector in line.
Tip: It is possible to right-click the Beam Reflectors to rotate them to define where the beam will point to.


JAFE Decorating offers thin film vacuum deposited coating services, specializing in convex first surface chrome mirrors and protected silver high reflective mirrors.
Other products include neutral density filters, beamsplitters, decorative coatings & EMI/RFI shielding.
We utilize planar magnetron sputtering technology to deposit a wide range of metals, and reactive sputtering to deposit metal-oxides and dielectric films.
Our 48″ diameter coating chamber and load lock have the capability to coat substrate sizes ranging from a single sheet of glass 32″ x 84″ to small part sizes down to 1″ x 1″.
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Custom personalized mirrors
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The Following Sources Will Certainly Offer You An Introduction Of The LASIK Surgical Procedure And Also Astigmatism
Content author-Mayer McCormick
LASIK surgery completely alters the shape of your eye's cornea. This enables light to be concentrated appropriately on your retina, leading to clear vision.
The procedure includes developing a slim flap of tissue in the cornea with an excimer laser. This flap is after that lifted as well as folded back.
LASIK surgical treatment is a surgery that can be pricey. Fortunately, there are many options to help cover the expense of the surgical treatment.
The general expense of LASIK relies on numerous elements, consisting of the kind of laser that is made use of to reshape your cornea. Additionally, the level of experience and innovation that is supplied will certainly affect the final rate.
Many lasik doctors charge one price for all vision correction treatments, with a tiny percentage based on the strength of your eye prescription. Some facilities may supply a reduced "introductory" rate for patients with weaker prescriptions, as well as a higher rate for those with stronger ones.
LASIK With Astigmatism
Astigmatism is a refractive error like nearsightedness (near-sightedness) and also hyperopia (far-sightedness). It is brought on by an irregular curve of the cornea, the clear, dome-shaped tissue at the front of your eye.
Having a qualified LASIK cosmetic surgeon is important to obtain the most effective results. see it here should have comprehensive experience and also wavefront modern technology, which assists to ensure your eyes are shaped appropriately during the surgical treatment.
Laser-assisted in situ keratomileusis, famously called LASIK, is a safe and reliable surgery to correct nearsightedness (myopia), farsightedness (hyperopia), and astigmatism.
In these situations, a second LASIK procedure called LASIK improvement can help. Enhancement is an outpatient surgical procedure that is very similar to the initial LASIK treatment.
In this second LASIK improvement, your eye doctor will lift your corneal flap, which they created throughout your preliminary LASIK surgical procedure. They will certainly make small reshapings underneath it, as needed. This is a quick, painless procedure.
LASIK For Poor Vision
LASIK is a prominent vision correction surgical treatment that utilizes innovative laser innovation to reshape the cornea, the clear front part of your eye. It is a procedure that can correct nearsightedness (nearsightedness), farsightedness (hyperopia), as well as astigmatism.
Throughout the LASIK treatment, an anesthetic is applied to your eyes as well as the specialist makes a flap in the outer layer of your cornea with a blade or laser.
After the flap is raised back, your specialist uses an amazing beam of laser light to reshape the cornea and also correct your refractive error. You may notice some blurry vision instantly after LASIK, but it usually improves as your cornea heals.
Farsightedness (hyperopia) is a vision trouble that includes light not being properly focused on the retina. This triggers objects distant to appear clear, while those closer to you look fuzzy.
People that have hyperopia can obtain LASIK eye surgery to correct their vision. Unlike various other types of refractive mistake, LASIK doesn't change the size of your eye; it merely improves the cornea to refract light better.
In spite of advancements in LASIK innovation, there are still some points that can be bothersome after laser eye surgery. These consist of completely dry eyes, which prevail throughout the healing stage of the treatment.


(Space Infrared Telescope for Cosmology and Astrophysics)
(plan for a future space IR telescope)
(for Space Infrared Telescope for Cosmology and Astrophysics)
is a proposal in development by
Japan (Japan Aerospace Exploration Agency) and Europe (European Space Agency), aiming at a launch in
the 2030 time frame.
It aims for a 2.5 m diameter telescope in an L2 orbit,
aiming for high sensitivity by cooling the mirror below 8 K.
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Referenced by page:


Circular convex mirrors are made of acrylic and are shatterproof. They are fully framed and have a hardboard backing.A metal mounting plate is riveted to the hardboard backing and holds a threaded adjustable swivel stud. By setting the angle of the stud, the mirror may be aimed at any viewing position desired. All mounting brackets and hardware are included with each mirror.
Available in diameters of 13" to 36".
****HOW TO KNOW WHAT SIZE TO ORDER****
As a guide to ordering, many customers use a rule of thumb formula of 1 inch of mirror diameter for each foot of viewing distance desired. Keeping in mind that the larger the mirror, the more detailed is the reflected view. Therefore, a mirror with a 13" diameter is used for viewing a distance of up to 13 feet, etc.


The Pro 3600 DIY LED Remote is one of the brightest bike lights ever constructed, producing an amazing 3600 lumens! The Pro 3600 utilizes six of the highest performing Cree LEDs available today to achieve this amazing light output. The Pro 3600 is the only bike light available that allows complete customization through our unique DIY Software. This allows the rider to tailor fit their light to the ride. The Pro 3600 is one of the most technologically advanced bike lights ever created.


26th September 2012
Link with 2 notes
You may have heard of the Hubble Deep Field (HDF) image and possibly also the Hubble Ultra-Deep Field (HUDF), which were long exposures of the Hubble space telescope’s camera on a very small portion of the sky, allowing the telescope to capture the very faint light of distant galaxies all-but-invisible to telescopes on the ground.
The HUDF has been called, “the most important image you will ever see.” The points of light that fill the HUDF image are not individual stars, but rather individual galaxies, which ought to stun the viewer into awed silence. Well, now NASA has produced another even longer exposure, which means an even deeper view into the cosmos.
The image above is a small portion that I copied out of NASA’s large 13 MB image, which you can see in its full size at the link above.


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Golonlite is a technology oriented enperprise in Shenzhen, integrating the research, development, design and production of industrial / Commercial LED light fixtures. . We have our own brand Golonlite registered in Shenzhen. With 9 years experirnece of production, engineering and world trades, we understand the importance of price, quality and design,so we do our own procutions, engineerings and reseach into full consideration. Our main prouduct lines include LED flood lights, LED high bay lights, LED canopy lights, LED street lights, high mast LED stadium light, solar LED street lights, tennis court lighting solutions,exterior led spotlight, LED PL lamp bulbs.
We are well-known in the LED industry with our advanced technology, scientific management, excellent quality and the first-class services.
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Golon Manufacturing Co. Ltd.
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Phone: +86 13689568212
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filter transmission spectra
Introduction Links spectra: OIII UHC H-beta other
Properties of interference filters
The spectral properties of filters are often displayed in a transmission spectrum. In such a spectrum, the percentage of the light that is transmitted by the filter is plotted vs. the wavelength.
Nebula filter let light pass only within a narrow pass band. This pass band is characterized by its central wavelength, the peak transmission within the pass band, the width of the pass band, characterized by the full width at half maximum (fwhm), and the steepness of the edges of the pass band (the steeper, the better). The ultimate goal for a nebula filter with given bandwidth is a filter with a peak transmission close to 100%, complete blocking outside the pass band, and a quasi-rectangular shape of the pass band.
In contrast to colored glass filters, in which the blocked light is absorbed, the filter action of interference filters is based on constructive and destructive interference on a series of alternating thin dielectric layers. The blocked light is not absorbed, but reflected by the filter.
An excellent introduction to design and theory of interference filters is here.
Spectral properties of "ideal" nebula filters
Ideal nebula filters should have high transmission in the range of the specified emission lines and complete blocking in the remaining spectral range.
Within the pass band, the transmission of the filters should therefore be well above 90%. The spectral width of the filter should be as large as necessary not to cut the emission lines, but not larger to avoid transmission of unwanted continuum light. This is best achieved when the edges of the pass band are as steep as possible. In order to be compatible also with fast optics, the pass band should have some buffer at the red side of the pass band to allow for a slight shift of the pass band (see below). Outside the pass band, the filter should block into the red and blue range as far as possible, at least as far that the range of sensitive scotopic vision between around 420 nm and 600 nm is covered.
What are the important emission lines of HII regions and Planetary Nebulae? For visual observing, these are only a few lines: the OIII emission lines at 501 nm and 496 nm (with the 496 nm line having one third of the intensity of the other line) and the H-beta emission line at 486 nm. The H-alpha emission line at 656 nm is not relevant for visual Deep Sky observing (see here).
The ideal OIII filter should be broad enough to transmit the two OIII emission lines at 496 and 501 nm (green) with sufficiently high percentage. The filter shown above (Lumicon) has a transmission of above 95% on both OIII lines and a half width (fwhm) of only 12 nm. This is about the minimal band width that allows the two lines to be transmitted without significant loss.
The OIII filter shown above (Baader) with a bandwidth of only 9 nm is narrower than the Lumicon and should therefore be better in blocking unwanted continuum light. This filter has, however, a transmission of only 86% at the OIII emission line at 501 nm and of only 21% at the (fainter) OIII emission line at 496 nm. It therefore severely cuts transmission of the specified OIII lines. Nevertheless, this filter can do a good job on bright OIII objects, such as for instance the veil nebula or on bright planetary nebula, or under heavy light pollution. Under good conditions, however, the detection of faint OIII objects is noticeably hampered as compared with the Lumicon filter.
As an H-beta filter has to transmit only a single emission line at 486 nm, the band width can be smaller than with an OIII filter. The filter shown above (Lumicon) has a transmission of almost 96% on the H-beta line with a band width of only 9 nm.
UHC filters transmit both the OIII and the H-beta lines and are therefore necessarily broader. The filter shown above (Astronomik) has transmission values of 92%, 95%, and 96% for the H-beta and the two OIII emission lines and a half width of 33 nm. As evident from the transmission spectrum, the band width of the filter could as well be 5 to 6 nm smaller without affecting transmission of the tree emission lines. This was considered with the newer series of UHC filters by Astronomik, which have a bandwidth of only 28 nm with transmission values on the emission lines similar to the filter shown above. The newer series of UHC filters by Lumicon are even slightly better with a bandwidth of 24 nm and transmission values above 95% on the three emission lines.
Influence of "leaks" on filter performance
While filters intended for photography should be blocked over a wide spectral range, such a wide blocking is not necessary for filters intended for visual use, as long as peak transmission and pass band width are optimal. The graph below shows the transmission spectrum of a Lumicon OIII filter (white), that has additional "leaks" in the range below 430nm. The blue line shows the relative spectral sensitivity of the dark-adapted eye. The red area is the transmission of the filter weighted with the spectral sensitivity of the eye. A comparison of the relative areas shows quite clearly that such "leaks" outside regions of sensitivity of the eye are marginal and that instead the optimal (i.e. smallest possible while maintaining full transmission on the lines) width of the pass band is the decisive factor for filter performance.
The lower graph shows two different UHC filters that have comparable transmission of the relevant H-beta and OIII lines, but different widths of the pass bands of 27 and 58 nm, respectively. Both filters transmit therefore equal amounts of the "desired" light (and have hence a similar "signal"), yet the broader filter transmits about twice the amount of "undesired" light (corresponding to twice the "noise". The "signal-to-noise ratio" of the broader filter is therefore only about half of that of the narrower filter.
Is a red pass band advantageous for a UHC filter?
A few years ago, I would have answered clearly that this does not matter at all, unless you are going into photography.
In the meantime, I am no longer a 100% sure about this. Many of the old and faint PNe emit a significant amount of their light in the NII lines at 654.8 and 658.4nm (see, for instance here), which are immediately adjacent to the H-alpha line at 656.3nm. The H-alpha line is accompanied by the H-beta line, which has only one third of its strength, but is placed in the visually better accessible blue spectral range. The NII lines do not have such counterparts in the blue range.
For extremely faint objects, that emit mainly in the NII lines, and under perfect observing conditions, a UHC filter with optimal pass band in the red spectral line for the NII and H-alpha lines could be the filter of choice. It does not matter much, if the pass band is open toward the red end, as the spectral sensitivity of our photoreceptor cells may serve as a "natural" cut-off.
Influence of non-normal incidence on the position of the pass band
The nominal position of the pass band of an interference filter is usually given for normal incidence of light. If the filter is used between mirror/objective and eyepiece (as usual), we deal with *nearly* normal incidence of the light on the filter and the pass band of the filter is not changed. In some situations, however, we have to deal with deviations from normal incidence, e.g. when
the filter is tilted by a certain angle
a filter is used between eyepiece and eye (e.g. with binoculars or for filter blinking) as the viewing angle behind the eyepiece is much wider than the light cone before the eyepiece
we use very fast optics (see below)
Under such conditions, the pass band changes:
it becomes blue-shifted, i.e. shifted to shorter wavelength
its peak transmission decreases slightly
the shape of the pass band changes and the bandwidth increases slightly
For deviations from normal incidence, θ, smaller than 25°, the shifted position of the pass band, λθ, can be calculated by
where λ0 is the peak position at normal incidence and neff is the effective refractive index of the filter. Typically, interference filters have neff of 1.45 or 2.0, depending on the dielectric material being used, which ultimately depends on the precise application and the required specifications. Filters with wider pass bands (such as typical UHC or broadband filters) are usually based on high-index spacers ( neff ≈ 2.0). Filters with extremely narrow pass bands and steep sides require low-index spacers ( neff ≈ 1.45). As a trade-off, they have a somewhat more pronounced wavelength shift than the former.
Here is an example of a narrow band interference filter with low-index spacers (Baader OIII), measured under different angles of incidence, θ.
The blue-shift of the peak, the decrease of the peak transmission, and the change of the pass band profile are all discernible in this graph.
Influence of fast optics on the pass band
So what's the point about fast optics and interference filters? Slow optics have a steeper light cone than fast optics, such that the light passes the filter closer to normal. For fast optics, the mean angle of incidence θeff can be calculated for the (mean) 71%-zone of the objective/mirror (f-number of an f/4 optic is 4)
tan (θeff) = 0.71 d / 2f = 0.71/(2*f-number)
For an f/4 telescope, this yields θeff = 5.1° and a shift of the pass band (at λ0 = 500nm) of approximately 1 nm, in agreement with the measurements shown above. For the edge rays, this shift increases to about 2 nm.
Therefore, with an f/4 telescope, the pass band shift is small, even for a narrow low-index filter, as even for fast telescope optics, the light cone is still relatively steep. Only for extremely narrow filters or for filters, where the specified emission line is close to the red edge of the filter, this pass band shift may affect performance. The situation is different, if a filter is used between eyepiece and the eye. Here the viewing angle is much larger and hence the pass bands shifts considerably off-axis. This is visible as a color change (towards blue in the most simple case) towards the edge of the field of view.
Aging and edge deterioration of filters
Older filters may age and undergo slow deterioration starting at the edge. As far as I know, this has been observed with some (not all) of the older laminated filters sold by Lumicon, but in at least one case also with newer series (my own Lumicon H-beta filter, left filter in the lower image). Presumably, this is related to moisture and inadequate storage of filters, as there are filter from before 1995, which are not affected.
Edge deterioration of two interference filters (left H-beta, right OIII)
In the photospectrometer, transmission spectra taken from the center of the filter look normal, while there is a shift of the passband to the red and a reduced transmission towards the edge.
Transmission spectra of the OIII filter in the upper right image
This spectral behavior could be due to a slight swelling of the dielectric layers of the filter during the aging process. As long as the aging process does not affect the entire filter, such filters may still perform reasonably well in the telescope. With the OIII filter in the right image, we successfully observed Abell 31 without severe limitations.
Filter transmission spectra
Besides optical quality, the transmission characteristics determine the usefulness of nebula filters. Therefore, transmission spectra are very helpful in deciding which filter to buy.
The spectra below are filter transmission spectra of filters of my own and of others. All spectra were obtained with a Hewlett-Packard G1103A (8453) diode array spectrophotometer.
The transmission values are indicated for the true position of the spectra line (valid for normal incidence). For the very narrow pass band filters, the values in brackets indicate the transmission at a position shifted by 1nm to longer wavelength, corresponding to the shift induced by the mean incidence angle of f/4 optics. The full width at half mean of the pass band is also indicated (as HWB, Halbwertsbreite).
The Lumicon filters are distinguished between the present series and the old laminated series. Astronomik and ICS are from the same manufacturer. They have generally broader transmission bands and only the most recent series have optimized narrower band widths.
Links to general pages on interference filters
Links to other web pages with transmission spectra
André Knöfel www.astroamateur.de most extensive collection of transmission spectra
Thomas Klotzbücher www.blackskynet.de collection of transmission spectra
Christian Buil www.astrosurf.com/buil collection of transmission spectra
Omega Filters/DGM/ ebay store
Introduction Links spectra: OIII UHC H-beta other


At CanyonView Family Eye Care, we take pride in using the latest technology to treat your every need. Please have a look at some of the instruments we use in our office to detect and treat eye diseases and conditions.
Topcon’s DRI OCT Triton
We use this to detect glaucoma, macular degeneration, retinal bleeding or swelling as well as any other small medical concern that can lead to a decrease in vision.
Optos Optomap Daytona
We use this to detect problems that affect the retina in areas that are typically difficult to see. This instrument also gives us a unique view into the anatomy of the eye as well as the function of the eye. Oftentimes a normal looking retina may have had an injury which decreased function in the retina and this will readily detect such an occurrence.
The technology used in this instrument has been used for a number of years to increase collagen and elastin in the skin in order to reduce fine lines and wrinkles. Along the way they must have discovered that dry eye symptoms were improving for those clients. We now use this technology to warm the area around the eye which acts as a fast working hot pack. It allows us to clean out stagnant Meibomian Glands on the eyelids with very little interaction with your eyelids. It has proven to be quite effective for this treatment. But the instrument has a fortunate side effect to also reduce fine lines and wrinkles in the area of treatment.
Cynosure ICON IPL with Max G
We use this instrument to also address fine lines and wrinkles of the face while also allowing better heating of the lids and expression of the stagnant Meibomian Glands of the eyelids. The Max-G attachment allows us to also reduce fine surface blood vessels associated with rosacea (especially ocular rosacea) which can have a positive impact on the stagnant Meibomian Glands as well. Rosacea causes these glands to become plugged and function poorly and this instrument helps to clear those vessels which helps to clear those glands
Oculus Keratograph 5M
We use this instrument for detecting nearly anything wrong with the front of the eye, including the biggest ocular surface problem—dry eye. This instrument has a number of tests which allow a detailed analysis of the tear film of the eye and allows us to better understand our positive impact on the ocular surfaces during our treatments.
We use this instrument in the detection and treatment of glaucoma as well as other medical conditions that can affect peripheral vision.
Are you looking for
Medical eye care ?
We offer a variety of services for your family at CanyonView Family Eye Care. From medical eye care, to eye glasses and contacts, as well as aesthetic services and dry eye treatments, we have you covered.


Home Eye Pressure Monitoring
iCare HOME tonometer for diurnal IOP Self-Monitoring
iCare HOME – How to measure the eye pressure with the iCare HOME tonometer
iCare rebound tonometer measuring close up
iCare HOME user experience
Irvine Eye Physicians and Surgeons Inc can now measure your intraocular pressure at home!
The iCare HOME Tonometer is the first device available to patients for measuring intraocular pressure (IOP) at home. iCare HOME provides an extensive an accurate view of the patient's diurnal or daytime IOPs.
Patients can measure their own IOP during the day. Measurement results from the portable iCare HOME device are uploaded into a secure cloud platform and are accessible to Dr. Chia and the patient at anytime. The iCare Home tonometer does not require the use of anesthetic drops or air to measure the IOP.
The ease of use, accuracy and reliability of the iCare HOME tonometer provides rich individual patient IOP trends and insights. This device allows measurements throughout the day and night providing a comprehensive picture of IOP trends that might reveal spikes and/or variations not possible with measurements only taken during clinic office hours. This rich information can then be used to customize treatment plans and to measure the effect of certain interventions.
Ease of use
Reliable and accurate
Automatic eye recognition
Intelligent positioning assistant
Secure data transfer to our iCare CLINIC software at Irvine Eye Physicians and Surgeons Inc.
Please review the iCare HOME Instruction video
We hope this diagnostic tool will help to preserve sight and provide peace of mind!


3D BodyView® Imaging Unit
Based on cutting-edge technology, Foot Levelers highly precise and accurate 3D imaging unit is designed with the ultimate goal of creating the perfect orthotic—which in turn helps bring about peak performance and health. Using Laser Triangulation technology which is one of the most accurate scanning techniques available. Laser Triangulation uses a beam of light to take a 3-dimensional map of your foot.
- Identifies asymmetries in the feet with Arch Height Mapping
- Illustrates how the feet impact the entire Kinetic Chain
- Generates foot assessments in under 60 seconds


Flash Video Light N-520
0/5 Reviews: 0
- Power: 37W(Max)
- Lamps beads: 520pcs
- Luminous flux: 4100LM(Max)
- Color temperature: 3100-5500K 5. Light angle: 120 degree 6. Color rendering: >=95
- This is camcorder professional LED camera light.
- Built-in 416 pieces high quality LED beads.
- A variety of dimming, more professional to use.
- Small size, light weight, easy to carry, easy to assemble.
- Highly efficient, power-saving, low energy consumption.
- Rotating the switch can adjust the brightness without filter plates, suitable for a variety of photography atmosphere.
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By Joseph Blanc
DETROIT (Reuters) – Lidar developer Ouster Inc said on Tuesday it had agreed to buy solid-state lidar startup Sense Photonics under a stock deal and would create a new automotive division led by Sense CEO Shauna McIntyre.
Ouster said he would buy out Sense, a private company, for 9.5 million shares of Oster, which were worth around $ 68 million at Monday’s close.
The acquisition comes as investors dampened their enthusiasm for lidar startups. Automakers and autonomous driving companies delayed large-volume deployment of the sensors to the middle of this decade, and Tesla Inc chief executive Elon Musk said Tesla could do without the technology.
The Ouster share price is down 47% since the start of the year. Rival Luminar Technologies has fallen 57% since January, while Velodyne Lidar Inc has plunged 75% for the year.
Lidar sensors create a detailed image of a vehicle’s surroundings using laser light. Aside from Tesla, most automakers and autonomous vehicle developers use lidar as part of the sensor arrays of their automated driving systems.
Oster CEO Angus Pacala told Reuters that the acquisition of Sense Photonics would accelerate Oster’s efforts to land high-volume contracts with automakers by a year. Sense brings semiconductor lidar technology, engineers and contract prospects to supply sensors to five automakers by 2025-2026, Pacala said.
“We can provide a five lidar system for $ 1,000 that circles the vehicle, versus a single prospective lidar that can cost $ 1,000 to $ 2,000,” Pacala said.
Ouster will create an automotive division, stepping up efforts to secure contracts to supply lidars for all-terrain vehicles and industrial equipment. About 80 Sense employees are expected to join Ouster, and some Sense executives have agreed to five-year retention agreements, Ouster said.
Today’s lidar sensors are too expensive for all but the most expensive consumer vehicles. Expel and its rivals are fighting to develop lower-cost digital and solid-state lidars, and are targeting models that will launch in about four years.
(Reporting by Joe White; Editing by Dan Grebler)