I think the lenses on the Mamiya 7 are closer to the film/sensor plane than on (D)SLRS, thus yielding adaptability to those impossible. But I don't see any reason why they shouldn't work on a mirrorless camera.
True, but nobody else does an adapter for electronic aperture lenses than the one on the OP. It just goes to show how frustrating is the decision of some manufacturers to abandon the traditional way of aperture control with a ring on the lens, I think that nikon's way of aperture control, the one on the D-series of lenses or the one of Leica on the R-lenses, is the best, It allows both mechanical control on the aperture and keeps full camera functioning on P & S modes. If it was applied by all manufacturers, it would give us the opportunity to save a lot of money on lens investment, while at the same time increase quality. We could then use our MF lenses for all telephoto purposes on smaller sensors and worry only on the wide angles for the dedicated ones. A Canon user for instance, could use the "Conorus" conversion to use the superb Contax N 17-35 f2.8 to cover the 17-24 part (at the range that this lens really shines), then use the dedicated 24-70mm, to cover the standard range and then use the "Conorus" adapter (the NAM-1 conversion) with the C645 lenses for the portrait/telephoto demands, with 4-5 lenses he could cover with top glass all that he needs in both APS-c, 35mm & Contax 645 (maybe he would need a WA in MF)! Regards, Theodoros. www.fotometria.gr