Worthy successor to the lauded Canon EF 500mm f/4L IS USM, the new EF 500mm f/4L IS II USM super camera lens options utterly redesigned fluor optics that deliver sharpy pictures with less aberration and incorporates a lighter weight because of Mg and metallic element construction components. as a result of image stabilization technology in super pic lenses could unwittingly over-compensate and interfere with composing and framing distant or moving subjects, the EF 500mm f/4L IS II USM includes a sophisticated third Image Stabilization mode (Mode 3) that activates is simply once the shutter button is absolutely ironed. this enables users to pan fast-moving subjects then activate is simply once it's exactly needed. in addition, all 3 IS modes offer the equivalent result of a shutter speed four stops quicker, ideally positioning the Canon EF 500mm f/4L IS II USM for skilled action photography, from sports to nature. The addition of the facility Focus mode permits swish focus modification once shooting video. Buttons and switches square measure redesigned for intuitive, deliberate operation, and dirt and water protection keeps the EF 500mm f/4L IS II USM functioning cleanly in even the foremost difficult environments.