Dorr EW-60CT Replacement Lens Hood is for Canon EF 28-80mm f/3.5-5.6, II, III, IV, V / EF 18-55mm IS, IS II and EF 28-90mm Lenses. Prevents unwanted stray light from entering the lens by shading and extending the end of the lens, this minimizes flare and ghosting. Also serves as a lens protector against accidental impacts.