What a great job he did. It looks very professional, even though the numbers produced must be fairly low. I wonder how the shutter mechanism works, on most medium format cameras that's a work of art and a project in its own right.
See "Camera Specifics" on [1], for a casual but accurate explanation.
Photography is an amazing hobby, highly recommend diving into it ^^!
1: https://photothinking.com/2021-07-03-mamiya-press-super-23-f...
It uses mamiya press lenses, the focusing helicoid and shutter are in the lens.