Canon Genuine Lens Hood EW-78E Canon This lens hood blocks unwanted light from outside the angle of view, preventing flare and ghosting, which can degrade image quality. By preventing flare and ghosting, it improves image quality and allows you to take photos that fully utilize the lens's performance. It protects the lens from impacts and dirt that cannot be prevented by a protective filter alone. Canon EW-78E Genuine Product This is a genuine Canon Lens Hood EW-78E. The shape is a petal-shaped hood. It can also be mounted in reverse for storage. Compatible Lenses EF-S15-85mm F3.5-5.6 IS USM and others *Everything in the photo is included.