Hi,
Yesterday I was checking some of my Zuikos and was shocked when I saw lots of
small dots or specks inside my recently bought 50/1.4 MC. None of my lenses
suffers from fungus, and I still hope that it is not the case with this lens.
The matter has been discussed here quite often, but I wonder whether there is a
safe method to determine if it is infected. If it is, it must be in a very
early stage, as the dots seem to be only tens of millimeters in diameter. I saw
them in daylight coming into the lens at a certain angle. They do not show the
characteristic pattern, but look like the tiny air bubbles on an object that
has just been but into frech water. It looks as if they are on the 2nd lens
behind the front element.
Can it be dust or condensed oil? As I don't know the story of this lens, I
cannot be shure if it has been maltreated, e.g. with heat that could have
caused the oil to evaporate. It does not really look like dust, on the other
side, and only one glass surface seems to be affected. This, however, is rather
unsafe to determine due to the curving and the enlargement within the lens.
What shall I do? The lens only costed me 40 $ or so as it has a tiny scratch on
the front element. Any chance to open and clean it? Don't think I will send it
to a CLA because of the low worth.
Any helpful comments are welcome.
Bernd Möller
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