This is adapter ring, mount allows you to attach any CY Lens to your ... body including the DSLR . Main Features: 1)This is adapter ring, mount allows you to attach any CY Lens to your ... 001 Nikon -EOS(silver,made of copper) 2,AD-01259 003 C/Y-EOS(silver,made of copper) 3,AD-01259 ... ,AD-01259 012 Mamiya-Kiev(black,made of aluminium) adaptor ring