Ngl, I was about to scrap a 70s SLR because of a stuck shutter.
Got this old Pentax K1000 in, shutter was totally frozen. Tried the usual gentle pressure with a spudger, nothing. On a whim, I put a single tiny drop of lighter fluid on a cotton swab and touched it to the pivot points, let it sit for maybe 20 minutes. Worked the mechanism back and forth gently, and it freed right up. Honestly thought it was a goner. Anyone got a better long-term fix for this, or is that fluid trick the go-to?