Sony Cyber-shot DSC-RX100 IV - Manual (Page 134)

Still: Standard gamma curve for still images
Cine1: Softens the contrast in dark parts and emphasizes gradation in bright parts to
produce a relaxed color movie. (equivalent to HG4609G33)
Cine2: Similar to [Cine1] but optimized for editing with up to 100% video signal. (equivalent
to HG4600G30)
ITU709: Gamma curve that corresponds to ITU709.
ITU709(800%): Gamma curve for confirming scenes on the assumption of shooting using [S-
Log2].
S-Log2: Gamma curve for [S-Log2]. This setting is based on the assumption that the picture
will be processed after shooting.
Black Gamma
Corrects gamma in low intensity areas.
Range: Selects the correcting range. (Wide / Middle / Narrow)
Level: Sets the correcting level. (-7 (maximum black compression) to +7 (maximum black
stretch))
Knee
Sets knee point and slope for video signal compression to prevent over-exposure by limiting
signals in high intensity areas of the subject to the dynamic range of your camera.
When selecting [Still], [Cine1], [Cine2], [ITU709(800%)], [S-Log2] in [Gamma], [Knee] is set
to [Off] if [Mode] is set to [Auto]. To use functions in [Knee], set [Mode] to [Manual].
Mode: Selects auto/manual settings.
Auto: The knee point and slope are set automatically.
Manual: The knee point and slope are set manually.
Auto Set: Settings when [Auto] is selected for [Mode].
Max Point: Sets the maximum point of the knee point. (90% to 100%)
Sensitivity: Sets the sensitivity. (High/Mid/Low)
Manual Set: Settings when [Manual] is selected for [Mode].
Point: Sets the knee point. (75% to 105%)
Slope: Sets the knee slope. (-5 (gentle) to +5 (steep))
Color Mode
Sets type and level of colors.
Movie: Suitable colors when [Gamma] is set to [Movie].
Still: Suitable colors when [Gamma] is set to [Still].
Cinema: Suitable colors when [Gamma] is set to [Cine1].
Pro: Similar color tones to the standard image quality of Sony professional cameras (when
combined with ITU709 gamma)