The EF 400mm f/5.6L USM is a super-telephoto lens delivering outstanding optical performance. Designed with portability and easy-handling in mind, its ideal for travelling and shooting wildlife from a distance and is a popular choice for wildlife photographers. The lens also has a built-in hood to protect against vignetting, and a detachable tripod mount for when extra stability is needed. The in-built Ultra-Sonic Motor (USM) drives fast and quiet Auto Focus with optional full manual override whilst the Super UD (ultra-low dispersion) elements, suppress chromatic aberrations resulting in sharper corner-corner images. Benefits A lightweight and compact super-telephoto lens suited to wildlife photographers Featuring a UD (ultra-dispersive) element and one super-UD element, whose characteristics are like fluorite. This combination results in sharpness from corner-to corner. Be prepared for split-second moments with a fast, responsive Auto Focus with Ultra-Sonic Motor (USM) The lens has a built-in hood and a detachable tripod mount Compatible with all Canon DSLR cameras and EOS-M mirrorless cameras with an EF-EOS M Mount adapter What\'s in the box EF 400mm f/5.6L USM Lens Lens Cap E77II Lens Dust Cap E Lens Neck Strap (Without Shoulder Pad) User Manual Good for Wildlife Action See all specifications