Question: ef-s 55-250 is stm lens?
Answer: The EF-S 55–250mm f/4–5.6 IS STM lens has a compact design thanks to a new six-group zoom system that provides a maximum magnification of 0.29x at the telephoto end and a minimum focusing distance of 2.79 ft./0.85m throughout the zoom range. * Based on CIPA (Camera & Imaging Products Association) standards.