D65 color ratios?

Discussion in 'Archived Threads 2001-2004' started by Ron Alcasid, Nov 19, 2002.

  1. Ron Alcasid

    Ron Alcasid Stunt Coordinator

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    What ratio of RGB create D65 grayscale?
     
  2. MichaelFusick

    MichaelFusick Second Unit

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    You need a color analyzer or optical comparator with lap top and software to properly set your greyscale to D6500K.
     
  3. Gregg Loewen

    Gregg Loewen Video Standards Instructor, THX Ltd.
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    The equation is:

    Y = .3 R + .59 G + .11 B

    Where Y = luminence (the black and white signal).

    As Michael has pointed out, this equation does no immediate good. However, as you learn to gray scale balance, you will see how different amounts of color will affect the balance.

    Regards

    Gregg
     

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