Haoge Bayonet Lens Hood for Canon EF-S 17-55mm f2.8 is USM Lens Replaces Canon EW-83J

Compatible with Canon EF-S 17-55mm f/2.8 IS USM NOTE: Only compatible with the lens list above. Please verify your lens model before order. Replaces Canon EW-83J The Haoge Lens Hood is primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens, plus prevent vignetting. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact.