I have this old Mamiya 180mm lens (non-C) for my RB67 with an unreliable shutter.
When I fire the camera the shutter closes down and sometimes refuses to open for the duration of the exposure.
The repair shop quoted me around 200 euros for the repair, for that money I'd rather buy another one.
Would it be possible for a novice to clean the shutter, the problem is that the oil seems to be on the front of the shutter which you cant reach from the back of the lens.
How would one go about opening the lens and cleaning the leaf shutter