how to clean a circular polarizer filter

Started May 28, 2013 | Discussions thread
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joemama10
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how to clean a circular polarizer filter
May 28, 2013

I tried to clean a smudge on a Marumi 67mm CP that I took on vacation. I ran some water on filter and dried it with cotton cloth after tried to dry with lens cloth paper. but it appears still smudged or not completey clear. is it possible that i got some water in between rotoating filters? is it the coating that appears not clean or clear? what is best way to clean? Thanks

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Nikon D300 Nikon D5200 Nikon D7100 Nikon D610 Nikon AF-S DX Nikkor 16-85mm f/3.5-5.6G ED VR +6 more
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