>>3227006>pic related645 was my stepping stone into LF and 6x7, I've thought about getting back into 6x7 I miss my RB. 645 has something like 2 to 3x the resolution of 135. I had a Mamiya 645 1000s and I loved it. Pantecks and Mamiya made some top shelf 645 rigs and there are 645 backs for the RB67 as well.