FeaturesLens Hood for EF-S 35mm f/2.8 IS Macro STMPrevent stray light from entering the lensKeep unwanted glare from affecting your photosPrevents reflection from white ring on the lensGenuine Canon AccessoryLens Hood designed to prevent stray light from entering the lens, in order to keep unwanted glare from affecting your photographs. Designed specifically for the EF-S35mm f/2.8 Macro IS STM lens, it prevents the white ring on the front of the lens from being reflected back into images on reflective surfaces. Threaded front allows for mounting of 49mm filters such as the Canon 49mm Protect Filter.