Old shutter: Betax #3
Front lens cell won't unscrew; rear cell is easy to remove.
My first thought is to get some light oil (Nyoil is what I have on hand) at the top of the threads and let it sit for a while.
Any suggestions? I'd really like to get the front cell out to try and get rid of some fogging, and if not then repurpose the shutter which works fairly well.
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