Instruct: Classify the given review as either positive or negative.
Query: Great wide-angle.

This is a magnificent lens. True it is a little bit fuzzy around the edges of the picture, but I tested a Canon and it did the same thing. I feel for HALF the price this is at least a much greater value than the Canon 10-22 I tested. It is a great little lens for the price. I am sure there is a better wide-angle out there but I know that I would tell anyone interested to get this Sigma over the Canon.I never use auto-focus (why I bought SLR in the first place) so I can't tell you if it does its job well or not. Working manual, however, it does an A job.