Canon XF100 Instruction Manual page 104

Custom Picture Settings
Master Black
Corrects color cast in blacks.
[Red]: -50 to 50 (Default: 0)
[Green]: -50 to 50 (Default: 0)
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[Blue]: -50 to 50 (Default: 0)
Black Gamma
Controls the lower part of the gamma curve (dark areas of the
image).
[Level]: Raises or lowers the lower part of the gamma curve.
This setting can be adjusted from -50 to 50. (Default: 0)
[Range]: Selects the range in which dark areas are affected. This
setting can be adjusted from -5 to 50. (Default: 0)
[Point]: Determines the shape of the lower part of the gamma
curve. This setting can be adjusted from -1 to 50.
(Default: 0)
Low Key Saturation
Adjusts color saturation in dark areas.
[Enable]: Activates/deactivates the setting. (Default: [Off])
[Level]: Specifies how saturated colors are in dark areas. This setting can be adjusted from -50 to 50.
(Default: 0)
Knee
Controls the upper part of the gamma curve (highlights of the image). By compressing the highlights, you can
prevent parts of the image from being overexposed. This is not available when [Gamma] is set to [Cine 1] or
[Cine 2].
[Enable]: Activates/deactivates the setting. (Default: [On])
[Automatic]: Select [On] to have the camcorder automatically set the knee point and slope to prevent images
being overexposed so quickly. Select [Off] to manually adjust the knee point. (Default: [On])
[Slope]: Determines the slope of the gamma curve above the knee point. This setting can be adjusted from
-35 to 50. (Default: 0)
[Point]: Sets the knee point of the gamma curve. This setting can be adjusted from 50 to 109. (Default: 95)
[Saturation]: Adjusts color saturation in highlights when [Automatic] is set to [Off]. This setting can be adjusted
from -10 to 10. (Default: 0)
Knee Slope
Input
Black Gamma
Input
Knee Point
Input
Point