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Thread: Cokin ND filter usage

  1. #1

    Join Date
    May 2010
    Location
    Toronto ON Canada
    Posts
    49
    Real Name
    Yi

    Cokin ND filter usage

    I am new with ND filter. I bought two Cokin ND filter P154 (ND8) and P153 (ND4) recently. When I use them seperately the result is fine. However if put them together on the holder the result is quite different with red tone. I am not sure if I use them incorrectly or something else. I attached the resulted photos here. Any advice is highly appreciated.

    Yi

    Cokin ND filter usage
    #1 ND filter
    Cokin ND filter usage
    #2 ND 4
    Cokin ND filter usage
    #3 ND 8
    Cokin ND filter usage
    #4 ND4+ND8

  2. #2

    Join Date
    Dec 2008
    Location
    New Zealand
    Posts
    17,662
    Real Name
    Have a guess :)

    Re: Cokin ND filter usage

    Hi Yi,

    It's a known problem with resin filters; Singh-Ray think it has something to do with infra-red light.

    Best way around it if you need bigger attenuations is to use a Singh-Ray Vari-ND filter; they give attenuation of between 2 & 8 stops, with no colour shifts.

  3. #3

    Join Date
    May 2010
    Location
    Toronto ON Canada
    Posts
    49
    Real Name
    Yi

    Re: Cokin ND filter usage

    Hi Colin;

    It makes sense now. Thank you for this information!

    Regards!

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