Attached Link: Canon EF-S 10-22mm f/3.5-4.5 USM

Not apples to apples, but the Sigma he compares it against does not fare so well. To be fair, here is a Sigma 10-22mm lens review: http://www.photozone.de/8Reviews/lenses/sigma_1020_456/index.htm

Kort Kramer - Kramer Kreations