Three weeks of scrubbing a fungus-covered Nikon viewfinder vs 10 minutes with the right solvent
Bought a beat up Nikon FM at a garage sale in Portland for $15, and the viewfinder was so cloudy you could barely see through it. I spent three weeks going at it with Q-tips and plain isopropyl, and honestly I made it worse, just smeared the fungus around and scratched up the screen. Then a guy at my local shop handed me a tiny bottle of hydrogen peroxide and ammonia mix and said just flood it and walk away for 10 minutes. I came back and the whole prism was clear, like night and day compared to the cloudy mess I started with. I'm still mad about those three weeks I wasted scrubbing when the fix was sitting on a shelf for $8. What's your go-to mix for fungus, because I clearly need to stop guessing.