User Manual

The Master Wheels, located below the Color Balance controls, let you adjust the YRGB
channels together to adjust Lift, Gamma, and Gain by individually adjusting the black point, the
white point, anddistribution ofmidtones that fall in-between. This has the practical effect of
letting you adjust image contrast when you manipulate any two of these wheels together.
Lift, Gamma, and Gain master wheels to balance the grades
The Master Wheels correspond to the rings surrounding the trackballs on the DaVinci control
panel, which let you modify image contrast via YRGB adjustment (as opposed to modifying
image contrast via Y-only adjustment, covered later in this chapter).
To adjust a Master Wheel:
Dragging a Master Wheel to the left makes the corresponding tonal region of the image
darker, and dragging it to the right makes that tonal region of the image lighter. The
effect will vary according to the Color Wheels mode you’re in. As you make an
adjustment, the YRGB parameters located underneath all change together to reflect
the simultaneous adjustment you’re making to all channels.
Each Color Balance Control and Master Wheel pair also have a set of four YRGB number fields
underneath that display the YRGB adjustment being made by both controls. These fields can
be edited like any other parameter on the Color page. Even though these values display two
decimal places of precision because of space restrictions in the interface, they really contain
three decimal places of precision since these are floating point operations; you just can’t see
the third decimal place.
To edit YRGB values directly:
 You can double-click on a field to edit its value numerically
 You can cut, copy, and paste values among fields
 You can click on the field and drag left or right to adjust its value with a virtual slider.
The number fields for each
Color Balance Control and
Master Wheel are editabl
Understanding the Primaries Wheels Controls
The Color Wheel palette’s Primaries Wheels mode lets you rebalance color and adjust contrast
via the traditional DaVinci controls, which govern three overlapping tonal ranges referred to as
Lift, Gamma, and Gain. The Lift/Gamma/Gain color balance and Master Wheel controls are tied
to the YRGB Lift/Gamma/Gain sliders found in the Primaries palette; adjustments made to one
set of controls are mirrored in the other.
Chapter – 117 Primary Grading Controls 2652