Mamiya 7 80mm Lens: Water-Damaged Shutter Not Opening
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
This Mamiya 7 80mm lens came into the shop with a complaint that the shutter was not opening. After some disassembly, the shutter looked fairly clean inside but I found evidence of water damage as you can see in photo three. Unfortunately, on closer examination, I found quite a bit of corrosion/water damage and decided that best course of action was to replace the complete shutter assembly after getting approval to go forward with the repair.
After all is assembled, the last step shown in photo four is checking/adjusting of the rangefinder cam and also checking focus with the lens on a special fixture and the use of an autocollimator.
