EasyFoto 46mm Silver/ Chrome Curved Vented Metal Lens hood for Leica, Contax Zeiss, Voigtlander Lens 46mm Chrome / Silver Metal Vented Lens Hood for Leica, Contax Zeiss, Voigtlander rangerfinder Lens Fits LEICA SUMMILUX-M 50mm f/1.4 ASPH, Zeiss 50mm f/1.5 Sonnar ZM, Contax G 35mm f/2.0 Carl Zeiss Planar T*, Contax G 45mm f/2.0 Carl Zeiss Planar T*, Contax G 90mm f/2.8 Carl Zeiss Sonnar T*, Contax G 35-70mm f/3.5~5.6 Carl Zeiss Vario-Sonnar T* and other lens which is with 46mm filter thread Made of metal, leica style lens hood 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.