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My uncle insisted I soak a stuck helicoid in kerosene for a week, and it actually freed up the focus on a 1972 Pentax Spotmatic.
I thought he was nuts, but after a gentle scrub, the threads moved like new, so what's the weirdest solvent trick that's worked for you?
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lisak262d ago
My dad's old trick was using automatic transmission fluid on a seized lens ring. It sounded like pure madness to me, but he swore by it. I let it sit for a couple days on this old Canon FD lens that wouldn't budge. The stuff is surprisingly gentle and just seeped into everything. After a clean up, the ring turned smoothly with no force at all. Sometimes the old-school methods just can't be beat.
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miles_sanchez2d ago
Honestly that kerosene trick is wild but I get it. Tbh I once used a mix of vinegar and baking soda to clean battery corrosion off some old flash contacts. It fizzed like a science fair volcano and I thought I ruined the whole unit. Ngl after rinsing it off with some isopropyl, the contacts were spotless and it worked perfectly. Sometimes the weird kitchen chemistry just pays off.
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