Re: Cleaning salt spots from lens

<Dave S> wrote in message news:3b6tv2pg7h7ao1gok42q7437qofsrqd9im@xxxxxxxxxx
Hello

I have noticed some salt spotting on my camera lens after a trip to
the seaside. Someone suggested I clean it with a lenspen

My experience with a Kodak Lenspen is not very encouraging. After a bit of
use it started to leave a deposit, not what I want when cleaning a lens!

but I have
thoughts that salt spots are likely to be crystalline therefore
abrasive, so would it be better to clean the lens with water and a
soft cloth ?

Water is better. Buy some gauze. Lens cleaning solution is somewhat more
effective than water, which tends to bead up, and may contain impurities
that will leave you where you started.

On the other hand I have read that it is better not to clean a camera
lens too often except that some contaminants like finger prints are
acidic and can damage the lens coatings.

Not likely, though it doesn't hurt to be paranoid about screwing up your
lens. I've very occasionally seen optics damaged this way, for high traffic
optics like binoculars, etc.

Are salt deposits likely to be corrosive to the lens coatings or can
they be ignored until the picture quality deteriorates.

Not particularly corrosive, but it's best to clean them off sooner rather
than later.
--
Mike Russell
www.curvemeister.com/forum/


.

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