JJC LH-65B Lens Hood Shade For CANON EF 70-300mm f/4-5.6 IS USM CANON EF 70-300mm f/4.5-5.6 DO IS USM Replaces Canon ET-65B Lens hood are primarily designed to stop light coming into the lens at extreme angles and being reflected inside the lens Material: Plastic Color: Black Anti-glare coating of the inner of hood for preventing the glare from getting into camera lens Lower the contrast of the image