What is the best method to clean circular polarizer filters? I am able to get the glass side clean, however, the side with the film or whatever seems to smear and never clean when I use lens cleaning solution and a microfiber cloth.
SoaringUSAEagle Daddy Of The Crop  10,814 posts Likes: 3 Joined Dec 2005 Location: Cheyenne, WY More info | Jun 19, 2009 11:51 | #1 What is the best method to clean circular polarizer filters? I am able to get the glass side clean, however, the side with the film or whatever seems to smear and never clean when I use lens cleaning solution and a microfiber cloth. 5D4 | 50 1.4 | 85L II | 24-70L II | 70-200 2.8L IS II
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Jon Cream of the Crop  69,628 posts Likes: 227 Joined Jun 2004 Location: Bethesda, MD USA More info | Jun 19, 2009 12:12 | #2 These Hoyas by any chance? The multicoating is (supposed to be) on both sides. The polarizing film is sandwiched between two layers of glass. So clean them like any other filter, except avoid immersive methods. I mostly use microfiber cloth and LensPen. Jon
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SoaringUSAEagle THREAD STARTER Daddy Of The Crop 10,814 posts Likes: 3 Joined Dec 2005 Location: Cheyenne, WY More info | Jun 19, 2009 12:30 | #3 Even the lenspen creates smudge marks, it's really weird. Yes it is a hoya for my 16-35. 5D4 | 50 1.4 | 85L II | 24-70L II | 70-200 2.8L IS II
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c2thew Goldmember  3,929 posts Likes: 4 Joined Aug 2008 Location: Not enough minerals. More info | Jun 19, 2009 12:49 | #4 i know the feeling. try to avoid soap as soap tends to leave a residue on the filter. the only successful way of cleaning it is by washing it, rubbing it down with a microfiber cloth, then using a secondary dry cloth in light circular motions. it takes a bit, but it will eventually remove the smudges. Flickr
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Jon Cream of the Crop 69,628 posts Likes: 227 Joined Jun 2004 Location: Bethesda, MD USA More info | Jun 19, 2009 12:52 | #5 Unless it was a B+W Kaesemann I wouldn't try washing it, except by using a damp, very slightly soapy cloth (ISTR Dawn or Dove dishwashing liquid is considered good). But CPs are glass-polarizing material sandwiches; get 'em too wet and you'll have to wait until the inside dries out. Jon
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SoaringUSAEagle THREAD STARTER Daddy Of The Crop 10,814 posts Likes: 3 Joined Dec 2005 Location: Cheyenne, WY More info | Jun 19, 2009 14:02 | #6 I live in a dry climate so that wouldnt take long. 5D4 | 50 1.4 | 85L II | 24-70L II | 70-200 2.8L IS II
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Wilt Reader's Digest Condensed version of War and Peace [POTN Vol 1]  More info | Jun 19, 2009 14:28 | #7 If you must use a liquid cleaner (I don't usually), simply use the cleaner and wipe until dry. Then fog the filter surface with your breath and wipe with a clean microfiber. You need to give me OK to edit your image and repost! Keep POTN alive and well with member support https://photography-on-the.net/forum/donate.php
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Burnaby Senior Member  345 posts Joined Jan 2009 Location: Vancouver, Canada More info | Lightly dampen a "glass polishing microfiber cloth" with lens cleaning solution (Costco sells a good one for eyeglasses) followed with lens paper, working from the center to the edges. Avoid applying the lens solution directly on the glass...
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SoaringUSAEagle THREAD STARTER Daddy Of The Crop 10,814 posts Likes: 3 Joined Dec 2005 Location: Cheyenne, WY More info | Jun 23, 2009 20:46 | #9 Thank you all for the replies. I was finally able to get it clean instead of having it smear. My B+W filter never gives me issues but this dang Hoya seems to. 5D4 | 50 1.4 | 85L II | 24-70L II | 70-200 2.8L IS II
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c2thew Goldmember 3,929 posts Likes: 4 Joined Aug 2008 Location: Not enough minerals. More info | Jun 24, 2009 02:02 | #10 "but this dang Hoya seems to." Flickr
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Jon Cream of the Crop 69,628 posts Likes: 227 Joined Jun 2004 Location: Bethesda, MD USA More info | Jun 24, 2009 07:26 | #11 Not just their newest ones. And I believe they even tout the new HD line as easier to clean. Jon
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