Mamiya Super 23/Universal cameras coming into the repair shop go through several testing phases to determine working condition. After a visual inspection where I am looking for signs of impact, water or sand damage, the rangefinder will be checked for vertical and horizontal image alignment.
These cameras are quite robust and typically the issue I see with them is rangefinder out of calibration. Also, the rear eyepiece lens and interior rangefinder glass can be susceptible to damage from moisture/fungus.
It’s not unusual for the lenses/shutters on these cameras to need service to correct sticking, especially at the slower speeds. I do stock all original Mamiya parts to correct any issues with these lenses.
A report will be sent to the client regarding the state of the camera with estimate for needed repairs.
After repairs are made the camera goes through testing once more to ensure that it is as close to factory specifications as possible.