christoph_k_gler

<p>Thx Arthur. Mamiya belongs to Phase One. It took them years to release a new 645 mirror reflex camera (XF), they won't develop a mirrorless camera. 645 or 66 format mirror reflex bodies have too long flange distance to mount the M7 (or M6) lenses. Actually I consider to completely re-engineer the M7 80mm and 150mm lenses for my Contax 645 camera (theoretically possible because the M7 back barrel diameter is rather small, so it can slip a bit into the C645 mount ... without interfering with the mirror) but that's a bigger effort to do. My biggest hope (dream? ;-) is that Fuji would release a mirrorless "MF" camera using the 44x33mm Sony sensor (used also in Pentax 645Z an others), that would be a damn good and unique high IQ camera with rather small and light weight lenses and short flange distance making it possible to mount many kinds of third party lenses (incl. M6, M7) by adapter are or modification (including the option of shift adapter for 66, 67, 68 lenses for architecture photography), in other words a reasonable priced alternative to the Alpa FPS.</p>

<p>@ Mag<br> then I suggest:<br> 1. buy a no-name "what ever"-to-Leica S adapter<br> 2. buy from Mamiya service the M7 camera bajonet mount ring as a spare part<br> 3. unscrew the "what ever" bajonet side of the adapter, machine it shorter to match the M7 flange distance, add screw holes for the M7 camera bajonet mount ring and mount it<br> 4. Ask Mamiya service to disassemble back barrel of M7 lens to remove leaf shutter blades and eventually the aperture lever in case it interferes with the adapter and the Leica S baronet.<br> Good luck, Christoph</p>

<p>HI Jude,</p> <p>sorry I didn't find out how to upload pics to photo.net but please check my post at LuLa.</p> <p>Please feel free to ask further details of the conversion.</p> <p>http://forum.luminous-landscape.com/index.php?topic=94282.msg770225#msg770225</p> <p>Christoph</p>

<p>Hi Jakob,<br /> it's not totally impossible to use Mamiya 7 lenses with your Leica S. The flange distance of M7 system is about 59mm which is rather large for a rangefinder camera. I don't know the Leica S flange distance but my guess is, it's shorter. So an adapter or an adaption of the lenses is theoretically possible. I did some modifications on M7 lenses (43, 65, 80, 150) in order to use them with my Alpa FPS and a IQ180 back because the lenses are very sharp (as you say;-) and they easily cover the 54x40 large sensor. The aperture is no problem because M7 does not have a spring aperture but the aperture is closed directly by the aperture ring at the lens. The central shutter is electromagnetic and normally closed. One has to disassemble the lens and remove the shutter blades to have the shutter open. Mamiya Germany did that service for me. They also disassembled some unused mechanical parts at the back barrel of the lens to avoid interferences with my customized adapter (which even allows shift movements on the FPS.)<br /> Enclosed a link for a 80MP pic by the M7 150f4.5 at open aperture.<br /> https://dl.dropboxusercontent.com/u/18437364/pictures/150mm-Mamiya-7-150f4.5-Apo%40f4.5.jpg</p>