Share with you: Removing Lens Fungus# PhotoGear - 摄影器材
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http://www.exposureguide.com/lens-fungus-cleaning.htm
If your camera happens to get infected with fungus, you need to act
quickly because some fungi secrete acid that will eat away at your lens'
protective coating; the fungi may even etch the glass and ruin the lens.
Luckily for us, this type of fungus is rare. There are few mixtures you can
make to clear away fungus. A hydrogen peroxide blend with ammonia is a good
method, as is a vinegar and water solution to remedy the fungus problem.
Make sure you don't delay, or you'll need to have the lens professionally
dismantled and cleaned, which will be expensive. If the lens has to be re-
coated, then you're looking at another big charge.
If your camera happens to get infected with fungus, you need to act
quickly because some fungi secrete acid that will eat away at your lens'
protective coating; the fungi may even etch the glass and ruin the lens.
Luckily for us, this type of fungus is rare. There are few mixtures you can
make to clear away fungus. A hydrogen peroxide blend with ammonia is a good
method, as is a vinegar and water solution to remedy the fungus problem.
Make sure you don't delay, or you'll need to have the lens professionally
dismantled and cleaned, which will be expensive. If the lens has to be re-
coated, then you're looking at another big charge.