Question: canon 55-250 vs 70-300 is usm?
Answer: Unlike the less expensive Canon 55-250mm IS STM lens, it has a metal bayonet mount and the new design feels slightly more premium. It is important to note another big difference between the two lenses: the 70-300 IS II will work on both full frame and APS-C, while the 55-250 STM is an APS-C only lens.