I was curious about the functionality of the metering prism finders (AE and PD) with third party lenses without aperture coupling with the body. Will the metering prism still work?
I am interested in shooting with Pentacon 6 lenses (the Sonnar and the Flektogon) mounted on the Mamiya 645 body using a generic adapter.
I would appreciate the info since I don't have a Mamiya body, neither have I ever used one. I was thinking of getting the M645+AE prism finder, which I guess is the cheapest option.