Pierre Samuel Rioux wrote: > If your lens is a T mount or a Leica mount you need a adapter Pierre, The Leica R is a bayonet mount. Not the same as an M39 or M42 mount... Cheers, Adam Frey Director/Cinematographer Crimson Chain Productions http://crimsonchainproductions.com Crimson Chain Productions PO Box 35 Libertytown, MD 21771