Fotodiox Metal Step Down Ring, Anodized Black Metal 43mm-37mm, 43-37 mm;

Fotodiox Step-Down rings are made of premium grade aluminum with precision. Every ring is inspected to ensure smooth mounting. Every ring is polished and finished with anodized matte surface for professional appearance. This step down adapter ring allows a filter/attachment with thread size of 37mm to be used with a lens with thread size of 43mm.