Originally Posted by adelorenzo
I had a Mamiya M645 and I don't remember any dark slide or film backs. Mine used film inserts that were not interchangeable mid-roll.
+1 Wrong camera, the m645 does not have a back that uses a dark slide. It does not have a back. The camera body takes inserts.
Everytime I find a film or paper that I like, they discontinue it. - Paul Strand - Aperture monograph on Strand