Data or video levels (DaVinci Resolve calibration)

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This topic contains 6 replies, has 3 voices, and was last updated by  Willian Aleman (@willian) 6 months, 2 weeks ago.

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  • #15502

    Fryderyk (@fryderyk)
    Participant
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    Hi,

    I’m a little confused, that’s way I want to make sure, which settings I should choose while making calibration for Resolve in DaVinci Resolve Master Project Settings and in “output levels” in DisplayCAL.

    I found different information. One say, that I should set the video levels, while other say, that there’s only one condition must be fulfilled: everywhere in pipeline should be the same, i.e. in Master Project Settings, on the monitor (where I also choose the range) and in DisplayCAL.

    Thank you for your answer.

    #15513

    Florian Höch (@fhoech)
    Administrator
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    Hi,

    which settings I should choose while making calibration for Resolve in DaVinci Resolve Master Project Settings and in “output levels” in DisplayCAL.

    you do not necessarily need to change anything here. The default settings are usually correct.

    hat there’s only one condition must be fulfilled: everywhere in pipeline should be the same, i.e. in Master Project Settings, on the monitor (where I also choose the range) and in DisplayCAL.

    It’s true that what you send from Resolve needs to match the levels your display device expects. But in DisplayCAL, this means leaving output levels at auto or setting them to full range, otherwise you’ll have double conversion when using video levels out (the default) in Resolve.

    #15527

    Fryderyk (@fryderyk)
    Participant
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    So to make sure I want to summarise:

    1) in Resolve (with DeckLinkcard) in Master Project Settings: Video Levels
    2) in DisplayCAL I set: 0-255
    3) on monitor I set HDMI RGB Range 16-235

    #15529

    Florian Höch (@fhoech)
    Administrator
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    That should be correct, yes.

    #15575

    Willian Aleman (@willian)
    Participant
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    That should be correct, yes.

    Being data range equal to (0-255 or  0-1023) and TV legal range level, equal to, (16-235 or 64-940) I don’t understand why DisplayCAL recommendation is 0-255. Specially, when the display is setup to or limited to receive a TV legal range: 16-235 input. Why DisplayCAL recommendation of data level is correct instead of matching  the display expected setting?

    #15592

    Florian Höch (@fhoech)
    Administrator
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    Because Resolve will already do the correct levels conversion. If you limit the signal in DisplayCAL as well, you get double range conversion.

    #15593

    Willian Aleman (@willian)
    Participant
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    Because Resolve will already do the correct levels conversion. If you limit the signal in DisplayCAL as well, you get double range conversion.

    Thanks for the clarification. It’s good to know this. Then, probably a less confused and descriptive tab term in DisplaCAL would be – Video/Data Level Range: – As Measure.

    Technically,  the function underline would be the same, however, the description would be more accurate.

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