This sale is for a near mint condition, boxed Mamiya 645 Reversing Ring RS-58 – suitable for all Mamiya M645/645 series cameras.
This ring has minimal signs of use.Very little used. This ring is used to reverse-mount ANY 58mm filter thread lens to a Mamiya 645 bellows or bag bellows for macro work. Works best in combnation with the CN-58 lens mount ring to give stop down aperture control using a twin cable release, but this is by no means essential and any lens that can be stopped down manually is suitable. Very hard to find.