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PICTURE ADjUST
R699870 - Helios User Manual 23
Custom 1 and Custom 2 that can be used to adjust color temperature to specic environment.
A Custom setting allows a ne adjustment of a Color Temperature by selecting it in the Correction Value menu.
Adjust the Gain values (bright part) and Offset values (dark part) for each color Red, Green and Blue.
Accurate color temperature may require professional tools such as dedicated software and colorimeter.
Wait at least 15 minutes after startup before modifying the picture settings.
Picture mode Natural Cinema Film HDR THX
Color Temp.
5500K - 9300K Xenon 1 Xenon 1 5500K - 9300K 6500K
High Bright Xenon 2 Xenon 2 High Bright
HDR 5500K - 9300K HDR
High Bright
HDR
6.5  AdvancedColorTemperature
When selecting a Custom color temperature, you can manually set the Gains and Offsets of each primary color:
red, green and blue to nely adjust the color balance.
6.6  Gamma
Gamma is the relationship between the color values of the data and the color values displayed. The Gamma
coefcient makes it possible to adjust the brightness of the mid tones only without affecting the very bright and
very dark areas. If gamma is set too high, middle tones appear too dark. If it’s set too low, middle tones appear
too light. Depending on the current active Picture mode, the Gamma setting can be set to:
Numeric value of 2.2, 2.4 or 2.6
Film1: standard gamma
Film2: slightly more contrasted gamma
Cinema 1: emphasis on gradations
Cinema 2: emphasis on contrast
HDR(ST2084): suited for HDR contents that uses with a Perceptual EOTF Gamma (HDR10)
HDR(Hybrid Log): Suited for viewing broadcast HDR contents such as ones by BBC or NHK
Normal: Standard setting for normal viewing.
THX: video gamma of THX standard
Custom 1 to Custom 3: ne tune the gamma setting according to the user’s preference.
Picture mode Natural Cinema Film HDR THX
Gamma.
2.2, 2.4, 2.6 2.2, 2.4, 2.6 Film 1 2.2, 2.4, 2.6 THX
Cinema 1 or 2 Cinema 1 or 2 Film 2 Cinema 1 or 2
HDR(ST.2086) HDR(ST.2086) HDR(ST.2086)
HDR(Hybrid Log) HDR(Hybrid Log) HDR(Hybrid Log)
6.7  AdvancedGamma
Correction Value
The Custom data can be set to a correction value: a numeric value that will act as a gamma coefcient between
Film 1, Film 2, Cinema 1, Cinema 2, HDR(ST.2084), HDR(Hybrid Log), 1.8-2.6 or Import.
Color Selection
Select the color to which the Picture Tone, Dark / Bright Level settings would apply. Choose between White, Red,
Green and Blue.
Picture Tone
It allows a ne adjustment steps of the global picture brightness while maintaining the correct contrast level to
keep good black and bright levels. Sets the overall exposure from -16 (under-exposed, darker) up to +16 (over-
23


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