The ERC-E45L Large EOS Rain Cover protects the camera and lens against water for prolonged shooting in the rain. Attaches to camera"s viewfinder using specially designed eyecup for ease of view. The large transparent window allows full access of camera control and unobstructed view of LCD monitor. Includes Eyecup L and Eyecup S to fit for all EOS cameras. COMPATIBLE WITH: EF 400mm f/2.8L Lens EF 500mm f/4L Lens EF 600mm f/4L Lens EF 800mm f/5.6L Lens