Foto4easy Petal Lens Hood Shape for Canon EF 24-105mm f/3.5-5.6 IS STM (Replace for Canon EW-83M) Shades the lens from stray light, improving your contrast and image quality. It can assist in keeping moisture or wind-blown debris off the lens; Protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles The "petal" shape of this lens hood maximizes the amount of hood coverage for the minimum amount of weight and hood area. Features a filter access window for easier adjustment of specialty rotating filters such as ND and CPL filters while the hood is in place Compatible with: Canon EF 24-105mm f/3.5-5.6 IS STM