Tronixpro 72mm Pro Series Hard Tulip Lens Hood For Canon EF 50mm f/1.2L USM Lens, Canon EF 85mm f/1.2L II USM Lens, Canon EF 35mm f/1.4L USM Lens, Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens This lens hood prevents image-degrading lens flare by blocking stray light from striking the surface of the lens It protects lenses from expensive front element damage Protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles. Microfiber Cloth 72mm Tulip Lens Hood