Ok, you have killed off the fungus.
Now what about the spores? I seem to recall they are somewhat
tougher. When your lens warms up the spores might start the ball
rolling again.
Giles
>
> Hello Omympoids,
>
>
> The recent threads on fungus (pun intended ;) ) have been very interesting.
> I did a bit of research about this organism, and have read that most fungus
> is very host specific, and is also very sensitice to environement. They
> require fairly specific growing surfaces, this is probably why we usuually
> only see the thread type fungus on lenses. I have read that funguses can
> only survive within certain temperature ranges too, in fact the reference I
> saw said that common fungi cannot survive below 5C or above 50C, Humidity
> also plays a strong part in fungi survivablity.
>
> After reading this I tried DEEP freezing my 135mm lense for a few days in a
> sealed bag with some silica gel at about -18C. Hopefully this will have
> killed off any remaing fungi. To me this seems more reliable than the UV
> treatment as there are no hidden or shaded area of fungi.
>
> Any fungi-ologists ;) on this list who can comment on this...
>
>
> Stuart
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