JJC Lens Hood for Canon EF 24mm f/2.8 ISUSM Lens and 28mm F2.8 IS USM Lens replaces Canon EW-65B Designed for Canon EF 24mm f/2.8 IS USM Lens & 28mm F2.8 IS USM lens 100% replaces CANON Lens Hood EW-65B Prevent unwanted stray light from entering the lens. Ensures no problems with vignetting or motor functions. Added benefit of extra protection from accidental impact.