Cineversum R599870, User Manual

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R599870 - Force 4K User Manual
4K AND UHD SETTINGS
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but uses the Hybrid Log Gamma instead. To obtain a perfect picture, just switch the Gamma curve from HDR
(ST.2084) to HDR (Hybrid Log):
Menu > Picture Adjust > Gamma > HDR (ST.2084) or HDR (Hybrid Log)
ST-2084 Gamma PQ can be used with both BT.2020 and BT.2100 inputs.
Tweaking the Gamma adjustments for 1,000 NITS sources
HDR Gamma default values matches an EOTF for HDR sources up to 1,000 NITS such as UHD Blu-Ray video
discs. The default advanced adjustments are as follow:
• Picture Tone: 0
• Dark Level: 0
• Bright Level: 0
If the picture seems a little dull or too dark
If the picture seems a little dull or too dark, you can change the adjustments as described below:
• Picture Tone adjustment: this adjustment changes the overall brightness of the picture. Increase the value to
obtain a brighter picture, recommended with larger screens.
• Dark Level: rise this level if the blacks are still too deep
• Bright Level: There are several HDR encoding with different maximum brightness. Rise this level if the white
portions of the picture are not totally light up.
7.4 Color Profiles
How to identify BT-2020 sources
Nowadays UHD discs and 4K sources can use BT-2020 color encoding, it may eventually be a REC-709 or
DCI-P3 gamut encoded into a BT-2020 profile or a true BT-2020 color profile. Since this unit can only detect the
color profile and not the encoding, some UHD discs may appear show incorrect colors when using the dedicated
BT-2020 color profile. If this is the case, it is better to switch to another color profile and use a standard profile
such as Cinema for DCI-P3 colors or Film for REC-709 colors.
• REC-709 colors:
Menu > Picture Adjust > Color Profile > BT.709
• DCI-P3 colors:
Menu > Picture Adjust > Color Profile > DCI
Setting up the proper BT-2020 Color Profile
Most recent UHD discs use BT-2020 color space, then the user should use this dedicated Color Profile:
• REC-2020 colors:
Menu > Picture Adjust > Color Profile > BT.2020
If the colors seem wrong with BT-2020 Color Profile, you can switch to a any existing Color Profile that
would be more suitable such as Cinema with DCI-P3 colors or Film with REC-709 colors.