The sigma 18 300mm f35 63 c dc zoom is a multi purpose lens with a 13 macro ratio and a 166x zoom covering versatile focal lengths from wide to telephoto the optical stabilisation system compensates for camera shake while an optimised hyper sonic motor hsm ensures quiet and fast autofocus the lens offers the highest standard for excellent image quality as a contemporary product of the sigma global vision product line and is an excellent choice as either your first interchangeable lens o