About this item ROLANPRO Lens Canouflage Coat for Canon RF 400mm F/2.8 L is USM, meticulously designed to ensure it doesn't affect your lens's manual focus and auto focus function; Using environmentally friendly materials, ROLANPRO lens cover is free from any unpleasant smells, helping you enjoy the fun of photography; When the ROLANPRO lens cover installed, the focus ring can be turned independently, the zoom ring rotation damping will not change.The control switch window further enhances usability and the lens hood still can be fixed in reverse; Protection from bumps, dings, nicks, and the elements Like water, sand, dust etc. The surface of the lens Protective coat is made of waterproof Oxford fabric, and inside is made of anti slip PU and loop velvet, which has the effect of preventing collisions and waterproofing. › See more product details