Quote:
Originally Posted by andyc
Would suggest perhaps something's grown on the lens from spores(?). Perhaps the addition of water was enough to activate them but not to remove the spores. Or possibly crystallisation from a solution around seed points? Those star shapes definitely look like either something living or something crystallised out of solution. But am really no expert at all - though I've seen 1cm lichens growing on an old uncleaned primary mirror that was left for a decade  .
The more I look at it, the more it looks like crystallisation - maybe salts from the water, or produced by the mix of water and whatever was on the lens surface pre-cleaning?
I hope you can find a way to fix it! |
the theory overlooks that the lens was not cleaned across it's whole surface. As I said, it was spot cleaned with water only in the few locations where spider poop was. The growth, whatever it is, is across the entire lens surface - edge to edge.
So whatever it is, it has been there for some time, it is related to some common cause, loks fungicidal and is uniform across the whole surface.
Peter