High-performance L-series super-telephoto lens, with 2 stop Image Stabilizer technology in 2 selectable modes ideal for tracking action perfect for subjects within sports and wildlife. The in-built Ultra-Sonic Motor (USM) drives fast and quiet Auto Focus with optional full manual override and the f/4 aperture at the 300mm focal length provides beautiful background blur, and the lightweight, portable build makes it ideal for photographers on-the-go.BenefitsProfessional 300 mm super-telephoto lens, for all types of sport and wildlife photographyLightweight and portable build for photographers on-the-go2 stop Image Stabilizer technology reduces camera shake, enabling hand-held photography in low-light with 2 selectable modes ideal for tracking actionThe in-built Ultra-Sonic Motor (USM) drives fast and quiet Auto Focus with optional full manual overrideEnhance your images and reduce ghosting and flare with SWC glass coatingCompatible with all Canon DSLR cameras and EOS-M mirrorless camera