ERC-E4M - Medium Raincover for EOS Cameras and selected longer lenses. It has been made to keep your camera clean and dry when shooting and is compatible with any Canon EOS Camera. The transparent window enables clear visibility of the top and rear LCD panels and LCD screen. Any Canon EOS DSLR with one of the following lenses (or equivalent size): EF 400mm f/4 DO IS USM Refurbished EF 300mm f/2.8L IS II USM Refurbished EF 400mm f/4 DO IS USM EF 300mm f/2.8L IS II USM EF 200mm f/2L IS USM EF 300mm f/2.8L IS USM