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Thread: Need advice : dark area on photo (circular polarizer)

  1. #1

    Default Need advice : dark area on photo (circular polarizer)

    Hi,

    I need some advice. I took this photo with a circular polarizer and found that there is dark area on the top left section. Any advice?

    Thanks very much.


  2. #2

    Default Re: Need advice : dark area on photo (circular polarizer)

    Do you know how does CP works?
    You are supposed to turn it.

  3. #3

    Default Re: Need advice : dark area on photo (circular polarizer)

    Thanks for the comment. Yes, I turned the CP. I turned and looked from the view finder until it looks even. However, the result is not so. I used it to remove reflection from water and it's obvious on view finder when it's the right rotation. Can you advice any technique or how to judge from the view finder for sky shoot?

  4. #4
    Senior Member giantcanopy's Avatar
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    Default Re: Need advice : dark area on photo (circular polarizer)

    The polarisation is most obvious and noticeable at an angle of 90 deg from the sun.

    For wide angle lenses especially anything wider than 28mm ( on a 35mm format ), the risk of uneven polarisation kicks in. Of course if you are using it for some particular effect there is no stopping.

    E.g



    Ryan

  5. #5

    Default Re: Need advice : dark area on photo (circular polarizer)

    Quote Originally Posted by giantcanopy View Post
    The polarisation is ........Ryan
    You are quite astonishing!!!

  6. #6
    Senior Member giantcanopy's Avatar
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    Default Re: Need advice : dark area on photo (circular polarizer)

    Aiya Esther that actually a newb take, my first trip overseas after i bought my then spanking new D80.

    I blundered a few shots taken wide with a CPL because of overzelous use causing uneven polarisation. Actually it is not too easy to see through the viewfinder how uneven it gets ( and I was too lazy to check the camera LCD ) . Nowadays i usually use it on the less wide focal lengths when I want to polarise the skies.

    Ryan

  7. #7

    Default Re: Need advice : dark area on photo (circular polarizer)

    Quote Originally Posted by giantcanopy View Post
    The polarisation is most obvious and noticeable at an angle of 90 deg from the sun.

    For wide angle lenses especially anything wider than 28mm ( on a 35mm format ), the risk of uneven polarisation kicks in. Of course if you are using it for some particular effect there is no stopping.

    E.g

    Ryan
    Thanks Ryan. I will take note of it in the future.

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