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Rant: I thought that old lens fungus cleaning trick was total nonsense
A buddy in Phoenix swore by using a 50/50 mix of hydrogen peroxide and household ammonia on a cotton swab for cleaning fungus off glass elements, which sounded like a great way to ruin a coating. I finally tried it on a junked 28mm f2.8 I got for five bucks, and after letting it sit for three minutes, the haze wiped right off without any etching. What's the most out-there cleaning method you've seen actually work?
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the_max1mo ago
Totally wrote that trick off as internet nonsense for years. Figured it was a surefire way to strip coatings and leave a mess. Had this old Takumar with awful haze sitting in a drawer as a lost cause. Finally gave the peroxide and ammonia mix a shot out of pure frustration, and I'll be damned if it didn't clear up perfectly. Sometimes the weird hack just works.
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