A fast-aperture super-telephoto lens that delivers a professional performance ideal for sports, news and wildlife photography. The worlds lightest 400mm f/2.8 lens The optical design of this super-telephoto lens doesnt just deliver superb image quality, it also reduces weight, making this the most portable 400mm f/2.8 ever. Professional image quality Achieve exceptional sharpness and contrast right across the frame. Superb for sports, wildlife and news photographers who demand the very best performance. Shoot handheld The EF 400mm f/2.8L IS III is the lightest 400mm f/2.8 lens in the world, and features an advanced five-stop Image Stabilizer, making hand-held shooting a reality. Focus quickly & accurately Subjects come into critical focus with exceptional speed and precision, even in low light. Fast moving-objects are kept sharp. Shoot with smart controls Fingertip controls let you start/lock AF or recall a pre-programmed focusing distance. All without taking the camera from your eye. Built to travel As an L-Series lens the EF 400mm f/2.8L IS III is built to exacting standards. Its sealed against dust and moisture and can withstand the rigours of professional use.