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White circles on photo. What is it?

km6xz

St Petersburg, RU
3559 posts

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"RE: White circles on photo. What is it?"

km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography Nikonian since 22nd Jan 2009
Sun 21-Apr-13 06:06 PM

The white circles in the center of the spots suggests that is it not normal oil or dust. To be brighter than the surrounding area it must not only be translucent but is concentrating light to be brighter after passing through it. So what material or liquid would dry in a contour that would become a concentrating lens? That leave oil and water out. Thee are some spores that would have the correct shape, as do pollens. If is is pollen, it might be hard to get off due to the organic "glue" they stick to landing surfaces with.
If it Methyl Alcohol, (a simple less expensive name for "Eclipse" fluid) is pretty good as an organic solvent that could dissolve the glue if its pollen or spores.
Try cleaning and see what happens.
Stan
St Petersburg Russia

Visit my Nikonians gallery.

A general, generic topic White circles on photo. What is it? [View all] , oncewaspfd , Sun 14-Apr-13 09:25 PM
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