Canon EOS-1D X Mark III Advanced User's Manual page 297

Characteristics
Adjust as needed. Select an item ([Sharpness: Strength], [Saturation], or [Hue]), adjust
the effect level, then press < >.
Sharpness: Strength 0: Weak outline emphasis 7: Strong outline emphasis
Saturation −4: Low +4: High
Reds −4: Toward magenta +4: Toward yellow
Hue* Greens –4: Toward yellow +4: Toward cyan
Blues –4: Toward cyan +4: Toward magenta
* Reds, greens, and blues cannot be adjusted separately.
Color space
[Color space] can be set when [Canon Log] is set to [On] and [Color Matrix] to [Neutral].
Choose [BT.709] or [BT.2020] as the color space for HDMI output.
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