I recently purchased a Mamiya 645AFD from eBay with two Mamiya 645 lenses (AF 80mm f2.8 (serial number AC1182) and AF 45mm f/2.8 (serial number TB1122)). After a bit of testing I'm facing a problem quite consistently with the 45mm lens. When I connect it to the body it makes a strange noise from the motor. When I press the shutter release it does not take a photo but instead displays "Err 02" on the camera.
I have checked the contacts which look clean, put brand new batteries, and most importantly when I put the other lens the camera operates normally without a problem. Strangely, the auto-focus works so the electrical connection is there. What could be wrong, and what are my options? (from New Zealand)
One important update: I went to see a camera shop and although they were not able to conclude much, they did point out that looking through the lens the aperture appears asymmetric, suggesting that this is the bit that's off – perhaps mechanically, or its electrical wiring.