The Canon ET-64 II Lens Hood is primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. One of the most important accessories for each lens you own. A lens hood provides multiple functions: it shades the lens from stray light, improving your contrast and image quality; in inclement weather, it can assist in keeping moisture or wind-blown debris off the lens; and it protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles. Almost all EF and TS-E lenses have a Canon lens hood engineered specifically for it.
Canon ET 64 II for EF75-300mm f4.0-5.6 USM IS Lens hoods are primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. Dedicated lens hoods are designed to match the specific focal length of the lens it was designed for.
Box Dimensions (LxWxH) 4.0 x 3.6 x 2.4"