used or refirbished?
even if the person offeres to take it back from me if there is a problem, how do you make sure he honors that? i doubt he'll give me his address and if he does. but when I buy the lense, i'm going to bring my camera and test the lens. if it seems to work fine, should I still be worried?
Canon EF-S 18-55mm f/3.5-5.6 IS
Canon EF-S 55-250mm f/4-5.6 IS
Canon EF-S 50mm f/1.8