Finally!!! After nearly a year of searching for a nice used copy of this lens, I found one for sale on Craigslist. This is like the 3rd time that Craigslist has came through for me for buying and selling camera gear. Behold the Sigma 10-20mm f4.0-5.6 EX DG. This lens shows less distortion and better sharpness than its Canon counterpart, the EF-S 10-22mm. This lens is also built way tougher than the flimsy Canon EF-S. After some testing, I concluded that this is a sharp copy and the lens does not have the decentering issue that some others have reported. I will use this lens for panoramic photo composites and up close action sports shots. I will be shooting with this lens tommorow and will post the results soon after.

The lack of a spinning focus ring promotes the use of filters.

10mm doesnt come without distortion but this lens will do great with landscapes and action shots. GO GO GADGET ARM!!!

Gawd I cant wait to take this stormchasing!!!