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Robert

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Posted on Friday, March 04, 2005 - 11:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi !!...
Anyone knows how to restore and/or clean-off fungus marks on a "Nikon 200mm lens glass element" ?!....

Dismantling the lens was pretty easy to do !!.., and all parts are presently clean as a wistle !!...

Only consern at this time, are the "fungus marks", that are still showing on the multi-coating glass elements !!... Nothing seems to do the work !?....

Any suggestions will help a great deal !?...

Tks !!....
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Winfried

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Posted on Saturday, March 05, 2005 - 02:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

In most cases it is possible to remove fungus. You should try to wipe the spots gently with some vinegar. If this does not work, try concentrated vinegar.

But in some cases the fungus has already damaged the coating, and the 'marks' (clear spots with higher reflections) left when removing the fungus cannot be restored.
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David Nebenzahl

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Posted on Saturday, March 05, 2005 - 11:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Winfried--what about the cold cream treatment? Would you recommend it in this situation?
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rick oleson

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Posted on Saturday, March 05, 2005 - 12:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

i've only tried that once, after reading about it (probably here). it had no effect at all, except i wound up with a slightly greasy lens and nice clean, soft fingers...

: ) =

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