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Posted by Conrad Hoffman on June 23, 2001 at 06:47:54:
In Reply to: how to clean fungus posted by craig buck on June 23, 2001 at 04:54:54:
Have a look at Ed Romney's repair site. I think he mentions using a mixture of ammonia and peroxide. I've cleaned up several lenses that I got very cheaply with great success. The problem is knowing how to correctly disassemble them. Most lenses come apart to some degree *without* removing individual elements, and the fungus is often between two groups where you can get at it. Until you gain some experience (and have the right tools), removing individual elements is risky. As I'm sure you know, fungus will eventually eat into coatings and even glass. OTOH, some of what is described as fungus is actually condensed residue from lubricants and coatings that comes off quite easily. Use very bright light and view the lens against a dark background to see if you've got it completely clean.
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