Question: what is better 55-250mm or 70-300mm?
Answer: Unless you're always going to be shooting from larger distances, at half the price the 55-250 is a better value as a telephoto zoom lens for your T3i. Image Stabilization (IS). Both the EF 55-250mm f/4-5.6 IS and the Ef 70-300mm f/4-5.6 IS have it. ... The IS on the 55-250 is good for about 3 stops of shutter speed (Tv).