I have a B+W circular polarizer. On the inner surface there seem to be two flecks of something relfective, like pieces of glitter. They appear to be slighty larger than the size of a period seen at the end of any given sentence in a canonrumors post.
Should the filter be cleaned? If so, with what or by what method? Will dust or the "flecks" I see affect photographs? I suspect that they will not, or at least not any more than they would if they were on a lens surface, but would like to know more from those of you who have experience with this.
I am hesitant to clean the filter too agressively. This is what I have:
http://www.adorama.com/BW77CPLKS.htmlSuggestions and thoughts?
Thanks