question: Why is the aspect ratio on photos and videos always different, even when shot with the same camera?
comment: Videos typically stick to an aspect ratio like 16:9, because it's a widespread standard for video consumption already whether it's a mobile screen, a tv, or a computer. Photos aspect ratios don't necessarily stick to the same rules (they commonly go with 4:3 at the maximum resolution, akin to old TV's and monitors), though in my experience as you can select one of several sizes to take photos at, you can select one that has the same aspect ratio. That Or select a size larger than what you'll need, and crop it down to the proper aspect ratio. My cheapo phone has several options and even lists the aspect ratios next to them, pick a 16:9 one.
passages: Pixel aspect ratio must be taken into consideration by video editing software products that edit video files with non-square pixels, especially when mixing video clips with different pixel aspect ratios. This would be the case when creating a video montage from various cameras employing different video standards (a relatively rare situation). Special effects software products must also take the pixel aspect ratio into consideration, since some special effects require calculation of the distances from a certain point so that they look visually correct. An example of such effects would be radial blur, motion blur, or even a simple image rotation.
   The following compares crops of an image at 4:3 and 16:9 ratios, with different dimensions set equal. Note that either image (or both) can be cropped; one aspect doesn't necessarily show more detail than the other.
  
  BULLET::::- Images using the same diagonal size:
  
  BULLET::::- Images using the same area / same number of pixels:
  
  BULLET::::- Images using the same height / same vertical size:
  
  BULLET::::- Images using the same width/ same horizontal size:
  
  Section::::Previous and currently used aspect ratios.
   Section::::Problems in film and television.
   Common aspect ratios in still photography include:
  
  BULLET::::- 1:1
  
  BULLET::::- 5:4 (1.25:1)
  
  BULLET::::- 4:3 (1.:1)
  
  BULLET::::- 3:2 (1.5:1)
  
  BULLET::::- 5:3 (1.:1)
  
  BULLET::::- 16:9 (1.:1)
  
  BULLET::::- 3:1
  
  Many digital still cameras offer user options for selecting multiple image aspect ratios. Some achieve this through the use of multi-aspect sensors (notably Panasonic), while others simply crop their native image format to have the output match the desired image aspect ratio.
  
  Section::::Still photography.:1:1.
   Netflix production and post-production requirements state that they prefer content up to 2:1 aspect ratio anything wider must be evaluated and discussed.
  
  Section::::Univisium in use.:Aspect ratio used in music videos.
  
  BULLET::::- Miranda Cosgrove: "Kissin U" (2010)
  
  BULLET::::- Girls' Generation: "Hoot" (2010)
  
  BULLET::::- Shawn Mendes and Camila Cabello: "Señorita" (2019)
  
  Section::::Univisium in use.:Aspect ratio used in devices.
   Section::::Aspect ratio releases.:Modified aspect ratio (MAR).
   BULLET::::- 2:1: Recently popularized by the Red Digital Cinema Camera Company. Original SuperScope ratio, also used in Univisium. Used as a flat ratio for some American studios in the 1950s and abandoned in the 1960s. Also used in recent mobile phones such as the LG G6, Google Pixel 2 XL, HTC U11+, Xiaomi MIX 2S and Huawei Mate 10 Pro, while the Samsung Galaxy S8, Note 8, and S9 use the similar 18.5:9 ratio.
  
  BULLET::::- 2.2:1 (11:5): 70 mm standard. Originally developed for Todd-AO in the 1950s. Specified in MPEG-2 as 2.21:1, but hardly used.
   BULLET::::- 2.76:1 (~11:4): Ultra Panavision 70/MGM Camera 65 (65 mm with 1.25× anamorphic squeeze). Used only on a handful of films between 1957 and 1966 and two films in the 2010s, for some sequences of "How the West Was Won" (1962) with a slight crop when converted to three strip Cinerama, and films such as "It's a Mad, Mad, Mad, Mad World" (1963) and "Ben-Hur" (1959). Quentin Tarantino used it for The Hateful Eight (2015), Gareth Edwards for Rogue One (2016), Kirill Serebrennikov for Summer (2018).
   Section::::Limitations.
  
  Since its introduction in the early 90s, new computer video techniques have been introduced which the original AVI specification did not anticipate.
  
  BULLET::::- AVI does not provide a standardized way to encode aspect ratio information, with the result that players cannot select the right aspect ratio automatically (though it may be possible to do so manually).
   With television, DVD and Blu-ray Disc, converting formats of unequal ratios is achieved by enlarging the original image to fill the receiving format's display area and cutting off any excess picture information (zooming and cropping), by adding horizontal mattes (letterboxing) or vertical mattes (pillarboxing) to retain the original format's aspect ratio, by stretching (hence distorting) the image to fill the receiving format's ratio, or by scaling by different factors in both directions, possibly scaling by a different factor in the center and at the edges (as in "Wide Zoom mode").
  
  Section::::Practical limitations.
   The aspect ratio of the frames can vary. Common aspect ratios include: 4:3, 3:2 and 16:9. (Sometimes 16:9 frames are actually 15:9) Depending on the model and features, images which do not exactly fit the aspect ratio of the frame may be cropped, stretched, or shrunk to fit. This could result in, respectively, images that are missing content, distorted, or which have blank space around them. This can be avoided by buying a frame with an aspect ratio that exactly matches the camera, or editing photos to the target aspect ratio before transferring them to the frame.
  
  Section::::Security issues.
   Anamorphic format is the cinematography technique of shooting a widescreen picture on standard 35 mm film or other visual recording media with a non-widescreen native aspect ratio. When projected, image have an approximated 2.35:1, 2.39:1 or 2.4:1 aspect ratio. "21:9 aspect ratio" is actually 64:27 (= 4:3), and is a near cinematic movie ratio.
  
  Mobile devices are now starting to use the 21:9 format, such as the Sony Xperia 1.
  
  Section::::Current video standards.:Vertical video.
   BULLET::::- Astigmatism of an optical lens
  
  BULLET::::- Nanorod dimensions
  
  BULLET::::- Shape factor (image analysis and microscopy)
  
  Section::::Aspect ratios of simple shapes.
  
  Section::::Aspect ratios of simple shapes.:Rectangles.
  
  For a rectangle, the aspect ratio denotes the ratio of the width to the height of the rectangle. A square has the smallest possible aspect ratio of 1:1.
  
  Examples:
  
  BULLET::::- 4:3 = 1.: Some (not all) 20th century computer monitors (VGA, XGA, etc.), standard-definition television
  
  BULLET::::- :1 = 1.414...: international paper sizes (ISO 216)
  
  BULLET::::- 3:2 = 1.5: 35mm still camera film, iPhone (until iPhone 5) displays
   BULLET::::- 1.:1 (5:3): 35 mm widescreen ratio, originally invented by Paramount Pictures, now a standard among several European countries. It is also the native Super 16 mm frame ratio. Sometimes this ratio is rounded up to 1.6:1. From the late 1980s to the early 2000s, Walt Disney Feature Animation's CAPS program animated their features in the 1.:1 ratio (a compromise between the 1.85:1 theatrical ratio and the 1.:1 ratio used for home video), this format is also used on the Nintendo 3DS's top screen as well.
   For example, in a group of images that all have an , one image might be 16 inches wide and 9 inches high, another 16 centimeters wide and 9 centimeters high, and a third might be 8 yards wide and 4.5 yards high. Thus, aspect ratio concerns the "relationship" of the width to the height, not an image's actual size.
  
  Section::::Some common examples.
   Section::::Still photography.:5:4.
  
  Common in large and medium format photography, and still in common use for prints from digital cameras in the 8"×10" size.
  
  Section::::Still photography.:4:3.
  
  Is used by most digital point-and-shoot cameras, Four Thirds system, Micro Four Thirds system cameras and medium format 645 cameras. The 4:3 digital format popularity was developed to match the then prevailing digital displays of the time, 4:3 computer monitors.
   Most other digital cameras achieve different image aspect ratios by cropping the image from the native sensor format. For example, most digital cameras with native 4:3 image aspect ratio sensors crop the native image on the top and the bottom to achieve either 3:2 or 16:9 images. On the other hand, most DSLRs crop their 3:2 native image aspect ratio on the top and the bottom to achieve 16:9, or in some cases, crop the 3:2 native image on either side to achieve 4:3 images.
   Section::::Use of pixel aspect ratio.
  
  Pixel aspect ratio value is used mainly in digital video software, where motion pictures must be converted or reconditioned to use video systems other than the original. The video player software may use pixel aspect ratio to properly render digital video on screen. Video editing software uses pixel aspect ratio to properly scale and render a video into a new format.
   is another format that can find its roots in the APS film camera. Known as APS-P (30.2 × 9.5 mm), with the -P" denoting "Panorama", the 3:1 format was used for panorama photography. The APS-P panorama standard is the least adhered to any APS standard, and panoramic implementation varies with by manufacturer on different cameras, with the only commonality being that the image is much longer than it is tall, in the classic "panorama" style.
   The table below shows the horizontal, vertical and diagonal angles of view, in degrees, when used with 22.2 mm × 14.8 mm format (that is Canon's DSLR APS-C frame size) and a diagonal of 26.7 mm.
  
  Section::::Cinematography and video gaming.
   The reason for DSLR's image sensors being the flatter 3:2 versus the taller point-and-shoot 4:3 is that DSLRs were designed to match the legacy 35 mm SLR film, whereas the majority of digital cameras were designed to match the predominant computer displays of the time, with VGA, SVGA, XGA and UXGA all being 4:3. Widescreen computer monitors did not become popular until the advent of HDTV, which uses a 16:9 image aspect ratio.
  
  Section::::Still photography.:16:9.
   Video is presented as a sequential series of images called video frames. Historically, video frames were created and recorded in analog form. As digital display technology, digital broadcast technology, and digital video compression evolved separately, it resulted in video frame differences that must be addressed using pixel aspect ratio. Digital video frames are generally defined as a grid of pixels used to present each sequential image. The horizontal component is defined by pixels (or samples), and is known as a video line. The vertical component is defined by the number of lines, as in 480 lines.
   With the adoption of high definition television, the majority of modern televisions are now produced with 16:9 displays instead. Apple's iPad series of tablets, however, continue to use 4:3 displays (despite other Apple products typically using widescreen aspect ratios) to better suit use as an e-reader.
  
  Section::::Current video standards.:16:9 standard.
   For analog projection of photographic slides, projector and screen use a 1:1 aspect ratio, supporting horizontal and vertical orientation equally well. In contrast, digital projection technology typically supports vertically oriented images only at a fraction of the resolution of landscape-oriented images. For example, projecting a digital still image having a 3:2 aspect ratio on a 16:9 projector employs 84.3% of available resolution in horizontal orientation, but only 37.5% in vertical orientation.
  
  Section::::See also.
  
  BULLET::::- Active Format Description (AFD)
  
  BULLET::::- Index of motion picture terminology
  
  BULLET::::- Paper size
  
  BULLET::::- Shoot and protect
  
  BULLET::::- Glossary of video terms
  
  BULLET::::- Ultrawide formats
  
  Section::::Sources.
   The term is most commonly used with reference to:
  
  BULLET::::- Graphic / image
  
  BULLET::::- Image aspect ratio
  
  BULLET::::- Display aspect ratio
  
  BULLET::::- Paper size
  
  BULLET::::- Standard photographic print sizes
  
  BULLET::::- Motion picture film formats
  
  BULLET::::- Standard ad size
  
  BULLET::::- Pixel aspect ratio
  
  BULLET::::- Photolithography: the aspect ratio of an etched, or deposited structure is the ratio of the height of its vertical side wall to its width.
  
  BULLET::::- HARMST High Aspect Ratios allow the construction of tall structures without slant
  
  BULLET::::- Tire code
  
  BULLET::::- Tire sizing
  
  BULLET::::- Turbocharger impeller sizing
  
  BULLET::::- Wing aspect ratio of an aircraft or bird
  
presuppositions: Aspect ratios on photos are videos are always different.
corrections: You can choose to use the video aspect ration on photos if you wish.
raw_presuppositions: Aspect ratios on photos are videos are always different. Aspect ratios on photos are videos are always different.
raw_corrections: You can choose to use the video aspect ration on photos if you wish. You can choose to use the video aspect ration on photos if you wish.