I got a cheap Mamiya 645J off of eBay. It's quite a bit different than my 645 Pro's.
The crank seems to only work when the film insert is in. When I click the shutter, it takes two full revolutions to reset it seems. One seems more geared than the second. One is advancing the film and the other is the shutter? Or is something wrong with this new camera and I need to send it back? I haven't run film through it yet.
Sometimes it seems one crank will do it. So, I'm wondering if two cranks is wasting an entire exposure of film (if there's film in there).
Can anyone fill me in on this? Thanks.