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What is on my lens?
What is on my lens? Please could I get some advice as to what this is likely to be on my Tokina 11-16mm? It's barely used and kept in a padded camera bag in my office cupboard. Whatever it is seems to be outer rather than inner, and spread out a little/got slightly bigger when I tried cleaning it with a soft cloth. Is it worth trying a dab of isopropyl on a cotto...
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