Fotasy 43mm Wide Angle Metal Lens Hood Shade for Nikon Canon Sony Lenses, Black (LW43) 43mm Wide Angle Metal Lens Hood Shade for Leica, Contax Zeiss, Voigtlander and other Lenses Fit wide angle lenses (28mm 35mm 45mm) which is with 43mm filter thread Also fits other brand lenses with 43mm filter thread It can prevent unwanted stray light from entering the lens and ensure no problems with vignetting or motor functions. Added benefit of extra protection from accidental impact.