9 out of 10 points and recommendedSee reviewOuter rings turns when autofocusing, can't override the autofocus.
Have this lense and the 17-40L Canon lense. We prefer this lense for most interior and landscape shots. It's clean and sharp from f4 to f16 and from 17 to 35mm. At wider aperatures it's still very usable, just not as crisp. Colors are a little cooler than the 17-40L and not quite as contrasty, but very accurate. Very fast and accurate auto focus. It does take some getting used to after using Canon lenses --- the focus ring near the front of the lense turns when auto focusing; and cannot be overriden, you have to turn off the auto focus to manually focus the lense. This is a snall inconvenience that's easy to adjust too considering the quality of the images from it. Highly recommend it -- sharp....reviewed October 20th, 2005 (purchased for $500)
7 out of 10 points and recommendedWell built lenseFront focus ring turns when auto focusing
Great lense for the money, don't think you could beat it anywhere. BUT, like several friends this was the second lense we got. The first one front focused so bad it was unusable for close shots (1ft. to 20ft.) With this lense now it's sharp from f2.8 thru the entire zoom range up to f16. Great natural color, good contrast, and sharp. Highly recommended -- if you get a good copy! Nice all around lense.reviewed October 20th, 2005 (purchased for $389)