JJC LH-J66 Reversible Hood Shade for Olympus M. Zuiko Digital ED 12-40mm f/2.8 PRO Lens (Black) Prevent unwanted stray light from entering the lens Non-glare matte finish on the interior further preventing lens flare With Filter Access Window JJC LH-J66 replaces Canon lens hood OlympusM LH-J66 Compatible with OlympusM. Zuiko Digital ED 12-40mm f/2.8 PRO Lens