The EF 600mm f/4L IS III USM offers professional and advanced photographers the excellent image quality of a Canon L series super telephoto lens while still remaining lightweight. For brilliantly clear results even in challenging situations, Super Spectra Coatings (SSC) and Air Sphere Coatings (ASC) help minimize ghosting and flare. The inclusion of heat-rejecting paint and two-layer barrel structure helps you shoot longer even in hot weather. Usability is further improved with a shorter minimum focusing distance, full-time manual AF and two easily selectable focus presets to help you quickly dial in the shot you want. Highly versatile, the EF 600mm f/4L IS III USM makes it easy to bring the action clear and up close in virtually any situation.