Pál_K
Cameras. I has it.
Poking around on E-pray I'm impressed by the number of cameras described as "mint" or 'near mint' that have mention of fungus. Seems like half of the listings have it. Hard to visualize a 'mint' or 'near mint' anything that has fungus growing in it.
Is this a common Nikon problem? Progressive? Treatable? Or just to be avoided?
Fungus isn’t unique or prone to attacking equipment from certain manufacturers. What causes fingus is high humidity and dust particles (always present microscopically), Lack of light and no air circulation adds to the problem. Zeiss issued a notice stating that fungus can begin to grow in even one day if relative humidity exceeds 60% and that, contrary to what some think, fungus on one lens does not “infect” other lenses - rather the conditions that caused fungus on the one lens will cause it on the others unless the situation is rectified.
I think keeping humidity below 50% and having good air circulation will prevent fungus. I live in Washington state, near a rainforest, cool temperatures and cloudy days. I have nearly 200 lenses and none of them - none of them - have fungus. The cameras and lenses in my camera room are out in the open - on shelves - and none are in cases They are between 62F and 75F year-round with humidity never being higher than 55%.
When I moved into my house, over 20 years ago, I kept my refractor telescope in its box in a dark closet for over 10 years without looking at it (rainy and cloudy here too much for astronomy). Anyway, eventually I thought I should check it, expecting to find an objective lens ruined by fungus. Big surprise: it was fine. The relative low humidity in the house saved it.