Latest post Thu, Sep 6 2018 7:09 AM by Roger Shufflebottom. 4 replies.
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  • Fri, Aug 31 2018 1:09 PM

    Color Info Tool question

    It might be my decaying brain, but can anyone tell me under what circumstances the 'Video LUT' readout of the Color Info Tool would show values that differed from the LH 'Video' value? The help files suggest it is to do with the display colour space but no combination of changes in the Project Window, Composer Window or Source Settings have any effect. Anyone?

    iMac i5 27", 24GB RAM, OS 10.13.6 with Symphony 2018.12, BlackMagic mini monitor. MacBook Pro, 16GB RAM with OS 10.13.6 with MC 2018.5 and BMD Ultrastudio... [view my complete system specs]

    With best wishes, Roger Shufflebottom

    ACI, Technical Tutor (Editing), Faculty of Media and Communication, Bournemouth University, Dorset, UK

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  • Wed, Sep 5 2018 4:33 AM In reply to

    • Martin Fox
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    Re: Color Info Tool question

    I have my computer display set to rec 709 full range in the composer viewer settings, so when in the colour corrector colour info window the video info and the video Lut info are different reflecting the expanded values for the display. so for something close to white the values read (Video )R207 G209 B207 ,(Video Lut) R223 G225 B222. But only in the previous and next windows, not in the main “colour” window,

    i don’t remember it reading like this! I expect it to give the Lut values in the main colour window too.

    I notice also that when using the colour info tool outside of the colour corrector the video Lut values are the same as the “video” values, this is not how I remember the info tool.

    iMac Retina27 late 2017 4.5Gz i7 40GB AMD 8GB with Sata Raid OS 10.13.4 MC 2018.3 BMD mini monitor with Eizo monitor [view my complete system specs]
  • Wed, Sep 5 2018 7:15 PM In reply to

    • MikeyB
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    Re: Color Info Tool question

    Hi Roger,

    I have my Project colour space set to Rec709, and my Display colour space to SRGB. The colour info tool tells me that the Video level of black is RGB 16, and the Video LUT level is 0. Similarly white reads 235 for Video and 255 for LUT - as I would expect. n'est ce pas?

    MacBook Pro 15" 2016 2.7GHz i7 Radeon 455 [view my complete system specs]
  • Wed, Sep 5 2018 7:49 PM In reply to

    Re: Color Info Tool question

    Hi Mike ... I've tried a number of combinations of settings but I'll have another look. Hope you are well. Thanks.

    iMac i5 27", 24GB RAM, OS 10.13.6 with Symphony 2018.12, BlackMagic mini monitor. MacBook Pro, 16GB RAM with OS 10.13.6 with MC 2018.5 and BMD Ultrastudio... [view my complete system specs]

    With best wishes, Roger Shufflebottom

    ACI, Technical Tutor (Editing), Faculty of Media and Communication, Bournemouth University, Dorset, UK

  • Thu, Sep 6 2018 7:09 AM In reply to

    Re: Color Info Tool question

    This is weird. I tried changing the Display colour space again and no difference initially then suddenly, it kicked into life and now works as you describe. One of those things. Thanks.

    iMac i5 27", 24GB RAM, OS 10.13.6 with Symphony 2018.12, BlackMagic mini monitor. MacBook Pro, 16GB RAM with OS 10.13.6 with MC 2018.5 and BMD Ultrastudio... [view my complete system specs]

    With best wishes, Roger Shufflebottom

    ACI, Technical Tutor (Editing), Faculty of Media and Communication, Bournemouth University, Dorset, UK

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