77mm Pro Series Soft Rubber Lens Hood For Sigma 10-20mm f/4-5.6 EX DC HSM Autofocus Lens, Sigma Normal 50mm f/1.4 EX DG HSM Autofocus Lens, Sigma 70-200mm f/2.8 EX DG APO OS HSM, Sigma 17-50mm f/2.8 EX DC OS HSM Zoom Lens, Sigma 85mm f/1.4 EX DG HSM Lens, Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Lens, Sigma 24mm f/1.8 EX Aspherical DG DF Macro Autofocus Lens, Sigma 50-150mm f/2.8 EX DC OS HSM APO Lens, Sigma Wide Angle 28mm f/1.8 EX Aspherical DG DF Macro Autofocus Lens, Sigma 85mm f/1.4 EX DG HSM Lens, Sigma Normal 50mm f/1.4 EX DG HSM Autofocus Lens, Sigma 24mm f/1.8 EX Aspherical DG DF Macro Autofocus 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 77mm Soft Rubber Lens Hood