In article , David Brown <keswick@xxxxxxxxxxx> writes
>Thanks for all your kind responses re small amount of fungus on 21mm lens.
>Am I correct in assuming that if I kill the fungus by exposure to UV it
>will not spread and I can get it cleaned at a later date?
>
>I have access to a UV tube used for photo etching PCBs - has anyone used
>one of these for this purpose (well, we don't get all that much sun here,
>and I would hate to leave the lens out in the sun and then find it had been
>rained upon!).
>
>Thanks again, David
>
>
>
I would suggest putting something over the rubber focus ring - or even
removing it - before giving the lens a heavy dose of UV from that sort
of lamp. I don't know how sensitive they are to UV, but most rubbers
and plastics are to a certain degree and that sort of lamp gives out
much shorter wavelegnths than is present in sunlight. Fortunately its
these very wavelengths that are fatal to most carbon based life forms.
:-)
--
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's pissed.
Python Philosophers (replace 'nospam' with 'kennedym' when replying)
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