[Knee] - Panasonic VariCam LT Operating Manual

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f [BC GAMMA]:
This is the gamma curve with 600% dynamic range equivalent to the generally used video camera. The gamma factor can be adjusted in the range of
[0.150] to [0.750].
r When [MAIN] is set to [V-Log]
[GAMMA] will be [V-Log].
r When [MAIN] is [SCENE1]/[SCENE2]/[SCENE3]/[SCENE4]/[SCENE5]
1
Select [MENU] → [SCENE FILE SETTINGS] → [GAMMA] → [GAMMA SELECT].
2
Select one from [V-709]/[V-406060]/[V-452080]/[V-452080L]/[VIDEO45]/[VIDEO50].
r When [MAIN] is set to [SHADING]
1
Select [MENU] → [SCENE FILE SETTINGS] → [GAMMA] → [GAMMA SELECT].
2
Select either of [V-Log]/[BC GAMMA].
In case of [BC GAMMA], the gamma can be adjusted with [MASTER GAMMA]/[R GAMMA]/[B GAMMA].

[KNEE]

This function sets the compression of video signals to prevent halation in images.
The dynamic range or compression rate of the signal will change depending on the setting.
White clip
Output
0
White clip
Output
0
[KNEE MODE]
[D RANGE]
[PRESS]
r [KNEE MODE] (setting for knee operation mode)
1
Select [MENU] → [SCENE FILE SETTINGS] → [KNEE].
2
Select [ON] in [KNEE SW].
3
Select either [D RANGE]/[PRESS] in [KNEE MODE].
r [KNEE POINT] (knee point position setting)
1
Select [MENU] → [SCENE FILE SETTINGS] → [KNEE] → [KNEE POINT].
2
Sets the position of the knee point.
r [KNEE SLOPE] (setting for knee inclination)
1
Select [MENU]→[SCENE FILE SETTINGS]→[KNEE]→[KNEE SLOPE].
2
Sets the knee inclination.
Chapter 4 Video Recording and Color Grading — Image quality adjustment
[KNEE POINT]
Dynamic range
Input
Fig. 1
[KNEE POINT]
Dynamic range
Input
Fig. 3
[KNEE POINT]
Fig. 1
The dynamic range that can be represented will not change.
Fig. 3
The dynamic range that can be represented will change.
Output
0
Compression rate
Output
0
Fig. 2
The dynamic range that can be represented will change.
Fig. 4
The dynamic range that can be represented and the
compression rate of the signal will change.
– 74 –
[KNEE SLOPE]
Dynamic range
Input
Fig. 2
[KNEE SLOPE]
Dynamic range
Input
Fig. 4
[KNEE SLOPE]

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