Leica R lenses to Leica M cameras adapter, this adapter is made by Novoflex Under licence from Leica camera AG in Germany. It is 6 bit coded, when mounted on Leica M body it brings up menu of R lenses in Lens detection menu for you to choose lens in use. The lens type is then included in Metadata. It can be used on all Leica L mount cameras in tandem with Leica M-Adapter L as recommended by Leica. Adapter is in as new condition in original box and instruction pamphlet. $199.