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Blue tinge when using 10 stop filter

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    gavrelle
    gavrelle  231 forum posts England
    20 Sep 2012 - 9:22 AM

    Hi there, started experimenting with a 10 stop filter, i use a hi tec one. HOwever on some images i seem to get a bluey tinge, how do i get rid of it??

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    LenShepherd
    LenShepherd e2 Member 62489 forum postsLenShepherd vcard United Kingdom
    20 Sep 2012 - 9:29 AM

    Test reports I have seen suggest tinges are not uncommon with 10 stop ND's.
    When you get the issue the tinge is easy to remove in post processing.

    JohnParminter
    20 Sep 2012 - 9:32 AM

    Set your WB to 10,000K. This neutralises the blue tinge when I use my Lee 10 stop filter, it might work for you as well. If it becomes too red then set lower, alternatively you can use automatic WB correction in your RAW convertor if it allows it. This also works very well on my NEF files in NX2.

    JP

    gavrelle
    gavrelle  231 forum posts England
    20 Sep 2012 - 9:44 AM

    thanks for that!!

    sherlob
    sherlob e2 Member 82332 forum postssherlob vcard United Kingdom125 Constructive Critique Points
    20 Sep 2012 - 9:50 AM

    Shoot in RAW and adjust WB in RAW conversion to taste. Wink

    rossd
    rossd  111061 forum posts England
    20 Sep 2012 - 10:07 AM

    You can also adjust in Adobe Camera Raw. Open in ACR and go to the HSL/Greyscale adjustment and select 'Saturation' from the 'Hue, Saturation Luminance' tabs. Then select the Blue slider and move as necessary (to the left to decrease the blue)

    Similarly, in Photshop, >Image>Adjust>Hue/Sat. Select the Blue slider and move to the left as required. Most photo editing software has this function.

    puertouk
    puertouk  31076 forum posts United Kingdom17 Constructive Critique Points
    20 Sep 2012 - 11:24 AM

    Easy way, ACW, use eye dropper tool, job done.

    StuartAt
    StuartAt e2 Member 91033 forum postsStuartAt vcard England6 Constructive Critique Points
    20 Sep 2012 - 12:20 PM

    Another cause may be underexposure - some 10-stoppers are reportedly more like 11-stoppers, so may need to experiment with exposure time. This would seem a more likely cause if only affecting some images.

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