Fotasy Silver Metal Screw-in Lens Hood for Sony E-Mount NEX 30mm f/3.5 Macro Lens, 50mm f/1.8 Prime Lens The 49mm silver screw-in metal lens hood fits Sony NEX E-Mount 30mm f/3.5 Macro Lens (SEL30M35) and 50mm f/1.8 Mid-Range Prime Lens (SEL50F18) Made of METAL, stylish and functional (the original OM LH_40B is made of plastic) Prevents glare and lens flare, but also provides an extra protection to your lens. The Professional Lens Hood is primarily designed to prevent unwanted stray light from entering the lens. Pls Note this is a Screw In Hood, not Bayonet Hood