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Thread: Problems cleaning lens filter

  1. #1
    Account Closed tduell's Avatar
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    Problems cleaning lens filter

    Hello All,
    I use a UV filter on my lens, but have had problems cleaning it.
    It appears to have greasy film, both inside and outside, and has been like this since new.
    I have tried cleaning with a very mild detergent and water, also using a micro cloth for spectacle cleaning, but all to no avail.
    All I seem to do is change the smear pattern!
    I can't say I have ever noticed that it has affected my images, but would like to have it "clean".
    Any advice?

    Cheers,
    Terry

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    Arch-Σigmoid Ausphotography Regular ameerat42's Avatar
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    How strange! Trouble is you can't hit them with anything too strong in case the coating or the glass itself is damaged.
    Have you tried a bit of metho?
    I hope that isn't too harsh, and I can only say mine (in the past) have usually responded to a bit of breath and a soft tissue.
    Am.
    CC, Image editing OK.

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    Administrator ricktas's Avatar
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    detergent could damage the coating, depending on what is in it. Lens cleaning fluid and microfibre cloth only
    "It is one thing to make a picture of what a person looks like, it is another thing to make a portrait of who they are" - Paul Caponigro

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    A royal pain in the bum! arthurking83's Avatar
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    I find this greasy film like finish on my cheaper hoya CPL filters.

    About the best way to get them clean is with Eclipse fluid.
    A small drop directly on the filter glass, and wipe with a pecpad .... done!
    Nikon D800E, D300, D70s
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    Ausphotography irregular Mark L's Avatar
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    Why do you bother using a UV filter? They don't do much for digital image quality.

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    No, but they protect your lens.

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    There's definitely two schools of thought on this subject tduell ... I used to use UV filters until Richard Hall pointed out to me some banding on a shot that I had posted on the forum which was caused by the UV filter ... I haven't used one since & I think it's improved my shots ... a lens hood is probably much better protection for your lens anyway ...
    Canon 7D Mark II | Canon 16-35mm | Canon 24-70mm | Canon 100mm Macro | Canon 70-200mm ISii | Canon 100-400mm ISii | Canon 580EXII | RRS tripod & ballhead

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    Administrator ricktas's Avatar
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    Quote Originally Posted by tduell View Post
    No, but they protect your lens.
    from what?

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    Ausphotography irregular Mark L's Avatar
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    Quote Originally Posted by tduell View Post
    No, but they protect your lens.
    Finally found this good discussion, ..... http://www.ausphotography.net.au/for...-of-UV-filters

    It covers the protection (or not) issue as well.

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    Member Fruengalli's Avatar
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    Quote Originally Posted by tduell View Post
    No, but they protect your lens.
    I live on the coast so I have a constant salt film on my gear...wipe the $100 filter 20 times or trash my front element? Chose the finance & perhaps lost some amateur quality in my shots but ...

    BTW... supposedly my filters weather seal my "L's"
    Last edited by Fruengalli; 11-12-2013 at 8:02pm.

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    Member RobC's Avatar
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    I sympathize Terry, I too live seaside. Everything rusts, salt air and humidity is a big problem for photo gear. I think a lens hood is better to protect the front glass element from damage, and a quality UV filter only used for severe situations.

    Have you tried a bit of metho?
    NOT recommended at all..- Metho contains pyridine and wood-naptha poisonous additives that are oily- when the alcohol evaporates, the oily residue remains. Ask your pharmacist for "Specially methylated Spirits" (only sold in pharmacies by law). It is ethyl-alcohol with methyl-alcohol, no residues. Or use a spectacle cleaner solution- most contain isopropyl-alcohol or similar (no residue). I asked my optician just recently- he cleans all his optical apparatus lenses with it, so it should not damage camera lenses.

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    Quote Originally Posted by ricktas View Post
    from what?
    Mainly dust. I have read the point of view expressed in the link provided by Mark L, and disagree on the dust issue. I would much prefer to be regularly cleaning a throw away filter than my lens.
    I am beginning to regret mentioning what sort of filter it was. The question was about cleaning, and I think the type of filter is probably irrelevant. Much of the subsequent discussion on the merits or otherwise of UV filter probably deserves to be in a thread more suitably named.
    Anyway, not to worry, just my point of view.

    Cheers,
    Terry

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    Member Fruengalli's Avatar
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    Quote Originally Posted by tduell View Post
    Mainly dust. I have read the point of view expressed in the link provided by Mark L, and disagree on the dust issue. I would much prefer to be regularly cleaning a throw away filter than my lens.
    I am beginning to regret mentioning what sort of filter it was. The question was about cleaning, and I think the type of filter is probably irrelevant. Much of the subsequent discussion on the merits or otherwise of UV filter probably deserves to be in a thread more suitably named.
    Anyway, not to worry, just my point of view.



    Cheers,
    Terry
    Fair point & my apologies. I use a puffer brush to get any fine grit or dust off first & then my "Specsavers" lens cleaning fluid with a good micro fibre cloth.(the optometrist tells me that this will not damage the filter coatings)
    Last edited by Fruengalli; 12-12-2013 at 5:50pm.

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