RZ67 Pro II: Checking a Complaint of Unsharp Photos
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
This Mamiya RZ67II came into the shop with a complaint of unsharp photos. When I receive a camera with this type of problem mentioned, I do a visual check of the camera and film back (lens was not sent with the body). Next I check focus on an autocollimator using a fixture for 6x7 (fixture is shown in the second photo). Another check is made with a test roll in the camera on the autocollimator to observe the image on film. Finally, I observe the image in the viewfinder using a 600mm collimator to ensure that focus on film and in the viewfinder are the same. In this case, everything checked out so the camera was returned with no work done. Perhaps an issue with shooting wide open and limited depth of field?
