So I'm considering the purchase if a Mamiya 7, but my question pertains to how the Mamiya 7 or other 6x7 format users on this list file and store their negs and proof the 10 frames from a standard roll of 120 film. I can't sem to find any Print File negative storage pages that will hold all 10 negs and I have not used the 6x7 format and I'm not sure what size paper I would use to make a Black & White contact sheet from a complete roll of 10 exposures. This may seem somewhat insignificant, but just wondering what others do.