02-09-2011, 10:12 PM
Tokina 11-16 and Canon 10-22 are the best choices. I opted for the Canon long ago and was never disappointed. I particularly like it's flare resistance. It's a feature I value a lot in UWA lenses as to avoid the sun you need to significantly alter your composition. As a I live in a very sunny country this makes it my preferred UWA.