Summary: I purchased it for my Sony A77 and it works well! There are newer models lens come out now but I picked this one because of price. I like to take photo a lot but I'm not a professional. This will be good enough for me. So far no complain and it meets all my expectations!
Summary: This lens isn't quite as teack-sharp as some of the other Sigma Art lenses, but those are hard to match. The sharpness is still incredible. The size is compact and on a Canon APS-C sensor you will get close to a 48mm field of view, which is about as close as you can get to a 50mm on a full frame...
Excerpt: I bought this lens as a prime to travel with, that got me closest to that nifty fifty feeling you get with a 50mm on a full frame. I think it fits that place pretty well on crop sensors. Produces good color and auto focus is decent. The focus ring feels pretty solid, but could be smoother.
Pros: Consistent Output, Nice Bokeh, Strong Construction
Excerpt: I was looking for a wider angle lens to replace my Canon 50mm 1.8 lens. After reading review after review and comparing the Sigma 30mm to the Canon 35mm 2.0 and 28mm 1.8, I settled on this lens. The focal length on this lens is perfect for photographing in small spaces and the bokeh is stunning.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction
Summary: This lens is amazing, especially for the price. I shoot with Nikon d5100 and its auto focus ability makes it so much better. I love it, except it does not focus on live-view... or video really. Good thing i normally dont use those. But if you are a portrait/wedding photographer i would recommend it.
Excerpt: I've had this lens for about two weeks. Not a lot of time to develope an opinion but just some initial observations. It's going to be best as a portrait lens, the focus is sharp and accurate when the subject is close (say 2-12 feet).