The Canon EF II IS L USM Lens is compatible with Canon SLR cameras. It offers autofocus so you get clarity and sharp focus while composing a shot. This lens has an f/2.8 aperture and a fixed focal length of 300 mm. For blur-free shots, this lens uses a three-mode optical image stabilisation system. It has fluorite optics that decrease chromatic aberration, giving you distinct photos. In addition, this Canon lens weighs 2.35 kg.