Excerpt: I noticed I reviewed this lens back in 2007, but since have moved entirely to FX and had given this lens to my daughter. This week, I decided to buy a new D7200 as a fun lightweight vacation camera and knew I needed to re-purchase this Sigma 10-20 f/4-5.6 lens because my daughter won't give mine...
Excerpt: Have only had a few chances to use this new lens thus far but am completely satisfied and happy thus far. Attached to my Sony A57 camera I have captured some great photos of landscape and cityscape scenes. Looking forward to more outings soon.
Pros: Consistent Output, Fast / accurate auto-focus
Summary: Very happy with this lens, It provided the wide angle shots that I wanted without the cornering fish eye look. The motor is pretty quiet comparing to Tameron and is on par with Canon wide angle lens. Focus ring is pretty smooth, it is a decent weighted lens I must say, feels very solid.