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Configuring Luma Warning

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Tancredi Capucci
Configuring Luma Warning
on Sep 30, 2013 at 6:17:02 pm

Hi all,
i've recently been working with a client that's asking me:

HD programs must not have luminance levels above 700 millivolts (mv) or below 0 mv.

The program’s color difference signals (R-Y, B-Y) must not rise above 700 mv or fall below 0 mv when measured with a 350 millivolt offset.


I'm pretty sure that the FCP warning for luma excess is under 700mv because some of the original footage goes in luma excess even before i start working on it, besides recent material i sent him was exceeding and i never had problems wilts few last programs (still exceeding) didn't pass QC, is there any configuration window that allows me to set different levels for luma excess?

Go Cows!


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Samuel Enblom
Re: Configuring Luma Warning
on Oct 1, 2013 at 7:59:43 am

Just a quick info-question... Have you tried FCP's luma-safe tool? It is, as far as I know, always safe for broadcast.


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Tancredi Capucci
Re: Configuring Luma Warning
on Oct 1, 2013 at 12:07:40 pm

Aparently its set to some other different configuration level and not 700 MV

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Tancredi Capucci
Re: Configuring Luma Warning
on Oct 1, 2013 at 1:41:25 pm

you mean the yellow triangle and the green circle right?

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Samuel Enblom
Re: Configuring Luma Warning
on Oct 1, 2013 at 2:50:25 pm

Actually I didn't mean the symbols that just warn you when you're off limits. There is an actual filter in FCP that makes sure you're broadcast-safe. (It might actually be called broadcast-safe filter). I'm a little rusty since I have made the jump to premiere.

I didnt fully watch this tutorial but the title sounded nice in regards to this question and to explain what I meant:






Also creative cow has its own explanation of broadcast colors:






I hope this can be of some sort of ease for you.


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Tancredi Capucci
Re: Configuring Luma Warning
on Oct 1, 2013 at 6:01:59 pm

The fist video just did it for me, thanks alot man it really helped out!! :)

Go Cows!


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Samuel Enblom
Re: Configuring Luma Warning
on Oct 2, 2013 at 8:33:54 am

I'm glad I could help!


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