9 out of 10 points and recommendedconstruction, sharp, fast, quiet and smoothsome vignetting
My English is bad ...reviewed March 8th, 2010 (purchased for $720)
I'm from Mar del Plata, Argentina and got this lens recently and am very happy!
This lens is excellent in all respects, is perhaps a little expensive but so far I can not complain about him. I recommend 100%