I was wondering if it was possible to attach a rz67 film back or even a m645 one to a mamiya press/universal. The reason I ask is I have a digital back right now on an rz67 with m645 to rz67 adapter. If a rz67 film back could fit on the mamiya press, I would be able to use my adapter to use my digital back on the mamiya press, which would be pretty awesome. Any info on this would be great if anyone knows anything.