Using a D7000. I find that I have to use AF-Tune at -8 to get in-focus images. Anyone else sees the same? Even then the images are just not tack-sharp
386984
I have Canon D60 and T3i and this lens is fantastic on both at all settings. I would contact sigma and talk to them about it.
386985
I get that same problem (I also have a D7000). However, on mine that is only for close-up macro-type images (when I snap the photo, the focus seems to be farther than where I focused - I lost out on some neat bug photos because of it, and did a lot of testing compared to other lenses). It does OK at distance. My adjustment is less than that (I don't remember it), but I don't use it much for close-ups. I use it mostly for wide shots and landscape work, and also inside museums. In a perfect world, I would buy the 24-70mm f/2.8 Nikon, but this is a third of the price, and for my application is fine. However, if you are shooting people at closer ranges, I can see where it might be an issue. That far off, and it might be worth talking to Sigma about it. They might be able to either fix it or replace it.
386986
it's kind of pointless to AF fine tune with a zoom, since AF fine tune works best with single focal lengths. with AFFT, you can only set focus for one focal length, i.e., if you tweak it to work at 17mm, you'll be off at 50mm. you might have to send the camera and the lens in to to Sigma to have them perfectly calibrated.
805252
Has anyone else found it impossible to get the fisheye to focus? It's blurry as heck.
846037
No, I've used my liveview mode on my d7000 to get a better idea of focus and then I've shot on a tripod. The portraits I've taken have been beautiful. If you have a lot of fast moving subjects, you may want to look at the Nikon 85mm f/1.8 autofocus.
845656
I wonder if you are using the camera correctly. If you set the camera to continuously focus, and then try to do focus-and-recompose, you will get out-of-focus photos most of the time. The Tamron all-in-one lens, like any all-in-one lens, is not the best lens in the world. But it isn't horribly bad, either. And it normally will not do a lot of focus hunting in decent light. If you are new to SLRs, you might begin by making sure that you aren't the problem. FWIW
968166
Okay M.I got my camera last night. I took a couple of pictures on my in to work this morning. I am going to post them after I make this post. I don't know what people are complaining about when they complain that the pictures are blurry. The pictures I took were extremely sharp. For the sample picture go the listed item. I will post more pictures by Sunday. Feel free to email me if you have any questions (superat06@gmail.com)Sean
220778
Oh! It happened in very bright sun in my backyard. I noticed it during night shot as well. When I zoomed in on a street lamp in the night about 50 yards away, it went out of focus and stayed that way. Very strange focusing system. I tried all the AF settings, but the result was the same. In the tele mode, it looks like this system has some serious focusing issue.
1532925
I had a problem with blurry images, too, so finally checked the owners manual (duh!) It mentions that if you press the shutter too hard, you actually cause the blurriness. I have lightened up my touch, and things have improved. I still love this camera.
1417502
I found that I had not been pleased with the focus at times on my D7000. I purchased The SpyderLensCal and it confirmed on multiple lens's that it was backfocusing.. All lens's were in the back focus category... I am very pleased with the results... Waiting for nice weather to calibrate my Tamron 150-600 and i suspect it will be in the same category as the other lens's...
1082491
The more I read about it online, the more it sounds like it's the iA 'algorithm' that is slightly flawed. Many blogs/websites all sight setting adjustments as the easy fix. Not so cool for someone like me that was hoping to rely on the iA for my day-to-day pics, but I guess it's a learning opportunity! Good luck yourself, I will say that other than this one issue I love every aspect of the camera. Will play with settings tonight to see if I can crack it.. ~Rich
521498
Let me guess, your images are not sharp. This lens will fit on your camera, and images should be sharp from F2.8 and up. If they are not. You have focusing problems with your camera body.
2280339
Are you 100% sure it was ISO 640 and not 6400? I think at 640, shooting at 1.8 with a high amount of grain is unusual for this camera- especially since the D700 has excellent high ISO performance. I don't start to really notice grain until I'm shooting at ISO 3200 or greater. Did you happen to zoom in to the photos? Which could make the grain more noticeable..? Oh yea, check to see if your sensor or camera lens is dirty.
973155
I am having this same problem, which I didn't previously have with my nikon...I typically use in auto mode....any tips for settings that will render most photographs useable (right now none of my photos are useable).Beware--I'm a frustrated novice!
661202
You can get some nice crisp photos/text at close range using the "Macro" setting. Need to turn the flash off though...which of course slows the shutter speed. Takeing a picture of a page is very doable though and it looks fantastic. I was really suprised when I tried it.
328799
I would also like to know if there is a lens for the D40x that is similar to the Nikon AF f1.8. I thought it would be OK to focus this lens myself but it seems in low light I can't see well enough to focus the lens. Now I'm sorry I bought it because I can't use it for what I intended. It does take nice landscape photos but there is no focusing to worry about at infinity.
368611
I tested both the Tamron and Sigma 70 to 200 f 2/8.`and this is my review. Every one is hot for fast AF, well the Sigma had fast AF, but the pictures it took sucked. The Tamron with its AF system took Great photos, but had slower AF. I don't know what you want, but I want great pictures. As far as sporting events go, set lens to inf., and shoot away, no problem. Thats the way it was done before all this AF. Hands down Tamron wins. I could have got the Nikon version of this lens, but even if you can afford it, what wrong with bang for the buck?
1264878
This takes a long time to focus, particularly on macro. While trying to get a shot of the super moon, I missed all of them, indoors using zoom is also slow. Without any zoom, much better. I think the zoom is the real culprit. Still with 16 MP per shot you can crop a photo and still have a sweet pix. I tend to do a lot of cropping in PSP. However, on a recent visit with my grandson, I missed nearly all the good shots as it wouldn't focus, some times while shooting a macro shot for example of a ring I made, it can take 20 tries to get a good shot, or twenty tries just to get it to focus, once focused it takes awesome pix. But those missed ones are a bummer. I tried several other cameras with 20x zooms, that didn't work at all in low light, this may not have a mega zoom, but 12x beats those longer zooms all over the place. In outdoor lighting on a cloudy day it does AWESOME. Hope this helps, I brought home a Canon, other Nikons, a Panasonic Lumix, Sony and Samsung they all were worse than this one. So with limited funds this is what I kept. My brother recently bought a Sony that was another $150.00 more dollars, and he got awesome pix of the super moon. If I had the money I'd shell it out for a more expensive camera, my sister just bought the next up from this with a 20x zoom, we both took pictures of the same subjects, mine were much better than hers. She uses a tripod a lot, I Don't want to use a tripod. It's supposed to be point and shoot. More zoom is bot necessarily better. Just my opinions.
1532924
I thought I had that problem...but, I really didn't. Sometimes when I aim at camera at a scene I want to photograph, that scene is blurry. However, it does not last. I lightly click the button that takes the picture, without pushing it down hard enough to take that picture. Every time, so far, the image rights itself and is no longer blurry, but sharp. I believe every time I have had the blurry image appear, it has been in daylight and on auto setting.