A new contender! The Tamron bows out at 24mm, and in comes the Canon 28-135 f/3.5-5.6.
It's EF - kit lens vs. EF-S kit lens in the ultimate sharpness battle.
I should mention, I did indeed remember to turn off IS on these lenses while using the tripod.
The 18-55 kit kind of blows the 28-135 away, in both tests.
And yes, once again I was off on the zoom amounts.