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R699860 - Siglos Plus User Manual
PICTURE ADjUST
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7.4  Color Temperature
Color temperature stands for the spectral properties of a light source. Low color temperature implies warmer
ambiance (more yellow/red) while high color temperature implies a colder light (more blue). Depending on the
Picture Profile selected, this setting can be set to:
• Preset: from 5500K / warm colors, up to 9300K / cold colors.
• Xenon1(*) uses the Xenon filter and color compensation to reproduce a film projector
• Xenon2(*) uses the Xenon filter and color compensation to reproduce a digital cinema projector
• Xenon3(*) same as Xenon2, but within a cooler temperature than Xenon2 setting.
• High Bright used for maximum brightness output available.
• Custom1, Custom2 and Custom3 can be used to adjust color temperature to specific environment.
A Custom setting allows a fine 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 colormeter.
Wait at least 15 minutes after startup before modifying the picture settings.
(*) Xenon Modes are exclusive to Siglos+ 2&3 models.
7.5  Advanced Color Temperature
When selecting a Color temperature, you can manually set the Gains and Offsets of each primary color: red,
green and blue to finely adjust the color balance.
7.6  Gamma
Gamma is the relationship between the color values of the data and the color values displayed. The Gamma
coefficient makes it possible to adjust the brightness of the midtones 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 from 1.8 up to 2.6
• Normal: Standard setting for normal viewing.
• A: Gamma curve that put more emphasis on the brightness compared to the Normal setting.
• B: more emphasis on the contrast compared to the Normal setting.
• C: Places more emphasis on the gradation compared to the Normal setting.
• D: Gamma suitable for viewing HDR (High Dynamic Range) content
• Custom1 to Custom3: fine tune the gamma setting according to the user’s preference.
• NB: when Color Profile is set to x.v.Color, gamma setting is fixed to Normal.
Additional Gamma settings when Film Color Profile is selected (Siglos+ 2&3):
• Film1: standard gamma
• Film2: slightly more contrasted gamma
7.7  Advanced Gamma
Correction Value
The Custom data can be set to a correction value: a numeric value that will act as a gamma coefficient between
1.8 and 2.6, Normal, A, B, C, D, 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.
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