User Manual

Though they may look different, the Primaries Wheels and Primaries Bars
actually adjust the same components, but in differentways.
These tonal ranges are defined by image lightness, on a scale where 0 is absolute black and
1023 is absolute white. The following illustration shows an approximation of how the Lift,
Gamma, and Gain tonal zones broadly overlap, and how each zone’s influence falls off towards
the opposing extremes of image tonality.
Lift Gamma Gain
Graphic displays the relationship of the Lift, Gamma, and Gain
controls over the image brightness range that they control
The Lift color balance control region of influence starts at black, and then falls off through the
middle grays to diminish to no influence at white. Meanwhile, the Gamma color balance control
has its greatest influence over the image in the middle grays, and its influence diminishes
towards black and white. Lastly, the Gain control is the inverse of Lift, having its greatest effect
on the image at white, with its influence falling off to diminish at black.
Because these tonal ranges overlap so broadly, you can make very soft, subtle, naturalistic
adjustments using these controls. Furthermore, you can capitalize on their overlap by moving
an adjacent color balance control toward a color that’s complementary to an adjustment you’ve
just made to restrict further how much of the image is affected.
Chapter – 117 Primary Grading Controls 2653