>>3866190>which lenses are good on the system?Note that it's not "the system". Mamiya has made a bunch of different medium format camera systems, most of which aren't really compatible with each other in any meaningful way.
Off the top of my head:
Mamiya C330 & friends: Interchangeable lens(es) TLR
Mamiya 645: Boxy little 645 SLRs
Mamiya 645AF: AF version of the 645 system, which I *think* is compatible with the manual focus lenses? But I don't actually know. This is the system that survives to the modern Phase One digital system.
Mamiya RB67: Big boxy 6x7 SLRs with a rotating back (hence RB) so you can shoot either orientation without turning the camera.
Mamiya RZ67: The replacement for the RB67, with more electronics.
Mamiya 6: 6x6 rangefinder
Mamiya 7: 6x7 rangefinder
Honestly, there might even be more that I'm forgetting. Mamiya's made a lot of different camera lines.