Quote Originally Posted by d0051m View Post
With the tamron being less than half the price of the canon 17-55 does the image quality suffer a lot?
FOrgot to add above, but to be clear the Tamron is 17-50mm, not -55mm. You lose a little IQ, but not too much. You do lose IS, obviously, and the IQ of the Tamron 17-50mm VC (their version of IS) is worse.