EzFoto Metal Tilted Curved vented Lens Hood for Voigtlander NOKTON 25mm F0.95, Nokton 35mm F1.2 ASPH II, ULTRON 40mm F2 SL II Aspherical, 75 mm F 1.8 Heliar Metal Tilted Vented Lens Hood shade for Voigtlander NOKTON 25mm F0.95, Nokton 35mm F1.2 ASPH II, ULTRON 40mm F2 SL II Aspherical, 75 mm F 1.8 Heliar Fit other lens which is with 52mm 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.