Sigma10-20mm f/3.5 EX DC HSM ELD SLD Aspherical Super Wide Angle Lens for Nikon Digital SLR Cameras

This lens works great on my Nikon cameras, even my older Nikon D40 camera. Auto-focus works great, even up close. Smooth zoom and manual focus. It’s a great optic and I would buy it again.

For the price, this lens is amazing! It's well-made and performs well. It's sharp even wide open, except in the corners. It sharpens up substantially by f/5.6 and is amazing at f/8. A little bit of distortion, buy that's inevitable with such a wide lens, and you can easily clean it up in post-processing.I was considering this lens, the Tokina 11-20, and the Nikon 10-24. After doing my research, I concluded that this was the lens to get, although some say that there is a risk of getting a bad copy. I did not get a bad copy, and I am extremely satisfied.

If your looking for a Ultrawide angle lens for a decent price the Sigma 10-20mm f/3.5 is a good choice. It is not a fisheye so straight lines will remain straight. However the same caveat that applies to all wide angle lenses applies here. Do not photograph people to the sides of the frame with this lens as you will likely get distortion. It's best to photograph people in the center with any ultra wide lens. For others that are new to wide angles like myself, one of the pieces of advice I came across when shooting with a wide angle lens is to try and get close to your subject. With such a wide angle the viewer may become detached from the subject so it's good to have something in the foreground to draw you in.What's important to note about this lens is that it has a wider aperture of 3.5. This is good if you plan on shooting indoors or in low light situations.This isn't a prime lens with a fixed focal length but rather a zoom lens that is a bit more versatile. I have a Nikon D5100 and the newer Nikon wide angle I had seen wouldn't work on my camera body. This lens will work with F-mount cameras. You can check Amazon at the top by searching for your camera model for compatibility.Also worth mentioning is it does have a focus motor and will auto focus. However it does not have image stabilization which while unfortunate isn't really a necessity.The build quality of the lens is pretty nice. It is a bit on the heavy side, but it feels solid. It also comes with a petal hood to prevent sun flare and a padded lens case.On a DX camera it's worth noting that the 10-20 mm is actually 15-30mm due to crop factor.The only real downside to this lens is that while photos tend to be sharp in the center of the image across all apertures, the corners can become a bit fuzzy. If you want sharper corners you may need to stop down F-8, or F-11.EDIT: I have had the chance to use this lens on a recent trip to Ireland and have decided to share some of the shots taken with this lens. The lens can create some nice sunburst effects as well!I was so pleased with how this lens performed in Ireland. I shot a lot of landscape shots right through the window of the tour bus setting a fast shutter speed. I did get some glare at times, which I may have been able to reduce with a polarizing filter. The lens is great for getting an entire building into the frame of an image, or for some truly stunning landscape shots.If you can't afford to invest a $700-$1000 in a wide angle lens, for the price the Sigma 10-20 F/3.5 is a good lens for the price.

Great lens. The autofocus sometimes doesn’t work, and when it does there are some times where it’s not focusing correctly. But using manual focus it’s great. Some minor blur on the sides, but I think this might just be because it’s a wide angle. Used for real estate photography and did an excellent job.

When people ask for recommendations on a super-wide-angle lens, they're often trying to decide between the Tokina 11-16 f/2.8 and the Sigma 10-20mm f/3.5.I tested these two lenses side by side last year and decided on the Sigma 10-20mm for several reasons:1. Extra range2. Better manual-focus ring3. Extraordinary "starbursts" when shooting into the sun4. Very solidly builtI took many great photos with this lens at locations in the US and abroad. Unfortunately, my kayak tipped over on a river in Florida earlier this year, and the dry bag wasn't sealed properly.As you might expect, #4 from the list above ("very solidly built") did absolutely nothing to prevent the water damage, and the lens was totally trashed. :(Even with the opportunity to buy the Tokina 11-16mm on sale from Adorama for $150 less, I went for the Sigma once again.This is a workhorse lens that pairs perfectly with the D7200 and was used to take these photos from last week's 4th of July fireworks. :)

The lens fit on my Canon 3200 perfectly as expected. It definitely made a huge difference in my photos without creating too much distortion (no fish eye effects just a nice wide angle view.) I have included 3 views of one of my listings so you can see the difference between the widest angle with the kit lens and the widest angle with this Sigma 10-20mm lens. Please note that the lighting was different the day I used the Sigma lens and those pics were edited for viewing online, but not cropped. I hope they help you decide if this is what you are looking for. I had the most difficult time getting an answer to what lens would be good for real estate, I am glad I went with this one. It seems to be perfect for my need and it is at a good price point for a beginning lens.

The Sigma 10-20 is a great lens for landscape, architecture, or urbex. The lens is tack sharp and focuses quickly. The 10-20 is also reasonably priced, all things considered. Sigma really makes good lenses and this is a good example of that build quality. I have used this lens with both Canon and Nikon and have always been more than happy. I am not going to get technical with IQ or colors but I find the image quality from this lens to be superb. Its not a fish-eye so but you will get some distortion depending on the subject..

Image sharpness is average at best on the outer edges but tack sharp at f8 through most of the image. Chromatic aberration is minimal. I’ve enjoyed using it for the last 11 months but there is now an issue with mine. Most of the left side of my image is out of focus. Thankfully it appears Sigma has a good warranty program.