Originally Posted by MrFatbooty
I take it this is the Tamron 11-18mm f/3.5-5.6 EF-S?
How well does it focus without USM? My only experience with non-USM lenses was a long time ago (Sigma 135-400, and Tamron 28-105/2.8), and at that time the lenses focused rather noisily and slowly.
No this is the Tamron 11-18 4.5-5.6 DiII lens.
The focus is actually faster than my Sigma 17-35 2.5-4.5 and weighs considerably less.
I know I should have gotten a faster lens but this lens is going to be used mostly outdoors in glaring sun or with multiple flash units. Since it's a wideangle DOF isn't a major concern either since wideangles aren't really known for amazing DOF anyways even in their faster forms.