It's exactly what I was looking for in a fisheye lens.
Wazm, B&H Photo
22 August 2015
Excerpt: It doesn't distort too much, but gives your photos that little bit of edge that's curved. Love that it is not very heavy, compared to my old "wide-angled" lens and it's much more useful. Really looking forward to taking it on my next trip.
Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight
Excerpt: Pleased with the quality of this lens. I use it on a Canon 5DIII, and really like the look I get. Sharpness and color rendition are very good. I only backed off one star due to sometimes it is slow to focus or seems to hunt a little, but the type of photos you take with a lens like this that's...
Excerpt: Good performance. I usually purchase Nikon glass but chose this lens to go with an Aquatica Underwater Housing due to smaller size and therefore smaller port size for the housing. Took it for a test shoot today. Happy with it.
Excerpt: I've been shooting photos for the last 35+ years. I shoot with a Canon 5D Mark III. I bought this lens for occasions when my 16-35 Canon lens isn't wide enough. The sigma lens is fast at f2.8 so it's great in low light. For those really close quarters shots, this is my go to lens.
Pros: Consistent Output, Easily Interchangeable, Fast aperture, Lightweight, Price
Summary: This lens is very clear. Even though I had tried this lens before I bought it, I was still surprised at how wide the images is. My first few images actually had my finger in the lower corner. I have since learned to keep my hands back. I like the images that I get with this lens.
Excerpt: I always wanted to try out a fisheye so I rented the Sigma lens and I liked it enough that I bought one. It's small, lightweight, auto focusses well and it's sharp enough. You wouldn't likely use this as your every-day walking around lens, but the unique perspective a fisheye gives opens up some...
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight, Strong Construction