EF mount; super telephoto lens Fluorite and Ultra-low Dispersion-glass; image stabilizer; internal focusing; full-time manual focus 400mm focal length f/2.8 maximum aperture Ring-type UltraSonic Motor (USM) Product DescriptionSuper telephoto L-series lenses with an image stabilizer are intended for use in track and field sports as well as low-light nature and wildlife photography. The fluorite element [...]
