Expressing The Gradation Of An Image (Knee, Gamma); Knee Control - Panasonic AG-CX350 Manual

The AG-CX350 Book: Understanding scene file operation

5-4. Expressing the gradation of an image (Knee, Gamma)

5-4-1. KNEE control

Due to bright sunny weather or lighting, "blown-out highlights" can sometimes occur, where bright
areas look completely white with little to no detail visible. This is a phenomenon caused by the
luminance signals that are out of the camera's Dynamic Range (processing range). In order to
put such high-brightness input signals within the camera's Dynamic Range, Knee function can be
used to compress the gradations.
MENU > SCENE FILE >
[KNEE MODE] AUTO / MANUAL / OFF
AUTO: Adjusts master point and slope automatically.
MANUAL: Knee master point and slope can be adjusted manually.
OFF: Knee mode not used.
[KNEE MASTER POINT] 80.0 - - - 93.0 - - - 107.0
Sets the position of Knee Point. (* Enabled when KNEE MODE is MANUAL)
[KNEE MASTER SLOPE] 0 - - - 85 - - - 99
Sets the slope of Knee. (* Enabled when KNEE MODE is MANUAL)
Output signal level
109%
100%
90%
80%
The above graph is for explanation purposes only and may be different from actual
measurements.
(Factory default settings underlined)
Knee point
Knee slope
Input brightness level
79