Summary: I haven't had the lens very long, but so far I am impressed with the images. My one complaint is that my Nikon D7000 seems to have more trouble autofocusing in low light...
Summary: I bought this lens to replace my sony kit lens. I am very impressed with the action of the lens. AF works nice and is very quiet. Image quality is great.
Summary: Always wanted a large aperture lens. Got it for Canon T3i and has severe front focus problems. Contacted Sigma rep who acknowledged the problem and suggested it to be...
Summary: For the image quality respective, it produced very sharp images without flash in low light... But... The Sigma OS's rattling too much if it had no power.