Hello All, I just won an auction in Germany for an original 120mm Rodenstock Imagon, with Schmactenburg focusing tube, and Canon FD adapter. The lens is new in the box. I also have a new in box 150mm Rodenstock Imagon cell set, which I understand will interchange on the focusing tube. Adapters were available for up to 6x7 format cameras, through Rodenstock. Is anybody out there familar with this lens? My intention is to have an adapter fabricated by a photo machinist, so that I can use this lens on my Exakta 66 MK3. I would like to find original instructions for it in English.