Features: This reduces the contrast of the image. Enables you to shoot towards a light source and reflect within the lens without excessive glare Prevents light from entering and reflecting within the lens at extreme angles Ability to use lens caps and filters with hoods on lenses. Can be installed in reverse to save space when not needed Specifications: [Model]: Openwork metal hood [Scope of application]: lensCaliber with internal thread [Color]: Black/silver [Texture]: All-metal mattesurface [Mounting method]: screw (mounted on the lens like a UV mirror or mounted on a UV mirror/CPLpolarizer) Backkick: Not supported Optional Color:Black / Silver BlackCaliber: 37/40.5/43/46/49/52mm SilverCaliber: 37/40.5/43/46/49/52mm Note: (Camera ,lens and others is not included) Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC Lens Hood