If you get a MFDB like a Sinar eMotion, with the adapter system, you can use the same back on various Sinar view cameras, Contax 645 AF, Hasselblad H1 & H2, Hasselblad 5xx series, Mamiya 645 AFD, AFD II, Mamiya 645 Super, Pro; Pro TL, Mamiya RZ 67, RZ 67 Pro II and Rolleiflex 6001, 6003, 6008 prof, 6008 integral, 6008 integral 2, 6008 AF