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Color Balancing should be done with the Xrite color checker MacBeth standard. The grey standard on the top of the track should be the QP card 101 v4 gray scale card. Be sure to use new color standards as some where damaged (faded) by the high temperature of the previous light set up. The calibration using the MacBeth write standard card is described below (note: the QP card v.4 101 method that was implemented in 2020 due to high temperature of lights is described at end of this User Guide if you need to reference that method).
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4. This step is no longer needed (info with strikethrough formatting) because the silicone matting is homogenous. The previous material used had a mottle effect and thus defocusing was required to provide an even surface. If you find that defocusing is still valid please make a note. Defocus the lens on the camera just a little bit (Figure 44). Look at the Profile graph and slightly rotate the lens’ focus until the RGB lines are smoother, but still have some variation.
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