Newbie needs help with some settings.

Discussion in 'Beyond the Basics' started by Vamp75, Dec 12, 2005.

  1. Vamp75

    Vamp75 TPF Noob!

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    I have a Canon 20D with the 100mm Macro lens. I'm trying to take pictures of some live coral in my fish tank. The lighting on the tank is 20k which produces a lot of blue. I have tried setting the custom white balance but the colors all look washed out and over exposed. They don't due the actual corals any justice. Please help.

    [​IMG]

    These were the settings:

    Aperture Value f/7.1
    Color Space sRGB
    Exposure Bias Value 0.33 EV
    Exposure Program Aperture Priority
    Flash No Flash
    Focal Length 100.00 mm
    ISO 200
    Metering Mode Multi-Segment
    Shutter Speed Value 1/5 sec
     
  2. Rob

    Rob TPF Noob!

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    When you say that you tried the WB, what did you actually try? If you want to get the colours right, then the best thing to do is bracket your shots. Start with underexposing it and move through the stops until you get to overexposed. Tweak the WB and repeat.

    Rob
     
  3. Vamp75

    Vamp75 TPF Noob!

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    I put a piece of white PVC and took a picture of that to set the white balance.
     
  4. Rob

    Rob TPF Noob!

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    Unless you immerse the card in the tank (or put it behind it) and take a reading from it, then it won't set it accurately as the lighting on the tank, the tank glass and the water itself will alter the light properties.

    I'd say go with the preset WB settings and adjust the exposure to alter the image properties.

    Rob
     
  5. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Welcome to the forum.

    Why not shoot in RAW mode and adjust the WB in post processing?
     
  6. Vamp75

    Vamp75 TPF Noob!

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    Raw is the way to go, I can set it to the color temp! Thanks for all of the help!!
     

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