At 11:32 PM 5/30/2001 -0400, you wrote:
>At 12:38 PM 5/31/01 +1000, Wayne Harridge wrote:
>
>
>>Seems to ba a
>>lot of fungus around these days - wonder if it's the greenhouse effect ?
>
>I pulled my OM stuff out of the closet a couple of weeks ago and dusted it
>off. It had been stored away in a dry closet for several years and when I was
>cleaning the 50mm, f1.8 I noticed a couple of black specks on the rear of the
>front element. The largest is about the size of a couple of grains of pepper
>and the other is considerably smaller. Might this be the infamous fungus that
>I'm reading so much about?
I'm not so sure -- fungus usually appears more greyish or white, and often
shows up as "blooms" or "spiderwebs"; sometimes, from a distance, your optics
can just look hazy, like a softening filter is being used. There's almost
never a definite "edge" to the fungal bloom or web, either.
What you describe sounds more like either (a) dust motes, or (b) black flecks
from the interior of the lens (possibly small amounts of the flat black paint).
If so, they're harmless, and won't resolve in photographs. Also, 'cause
they're black, they'll have much less of a flare effect than if they were white
or grey...
Garth
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