Re: [KOML] Question on KO

[Michael Scott <MichaelScott7@compuserve.com>]

Lyndon:

Thanks for the response. I have a Rodenstock enlarging lens (135mm) which
appears to have the fungus on the outer elements (both front and back). I
will look for a tool to remove them outer elements (I think Fargo might
have one) and then try your suggestion. Thanks again. 

Michael

Message text written by "Koni-Omega Mailing List"
>
At 01:52 PM 10/14/99 -0400, you wrote:
>Lyndon: 
>
>Could you tell me how you solved the problem with the fungus inside the
>shutter?
>I have a number of lenses (non KO) that have this problem and have not
been
>
>able to solve it. Thanks in advance for your assistance. 

I think it depends on how bad the infection is and where it is. In my case
I was lucky in that the fungus was growing on the surfaces  of the elements
and not in between glued elements.

What I did was to take the lens apart. Then I cleaned it with the cream
they sell for Athelete's foot. People had recommended cold cream but it was
hard to find normal formulations without added perfumes and softeners and I
didn't want to risk using stuff I didn't know about. The Atheles foot cream
contains a fungicide  so it seemed like the best option. I applied the
cream twice. The first time I smeared it on the lens and used a lens tissue
to work it into the infected area to remove the fungus, then I washed the
cream and fungus off under a running tap. Then I applied the cream again
and left it for about an hour. Next, I rinced with water again then cleaned
the lense with alcohol,let it dry and then finished off with lens cleaner.
In my case the fungus hadn't etched the glass but it had eaten a largish
chunk of the lens coating. I reassembled the lens and that was that.

Hope it helps.

Lyndon



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