Quote (Futurama @ Tue, Jun 2 2009, 03:52pm)
uh duh lol It's a corner crop. I believe if you want absolutely sharp image both in center and corner you may will need a EF 16-35 f/2.8L USM II lens which on a full frame body gives the same field of view as the Sigma lens on crop bodies.
Thats why I wanted to check if anyone had the Canon 10-22 and Tokina 11-16.
Ive used a few 16-35's and 17-40's on FF and its sex.