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Re: ALexa ProRes4444 LogC workflow question

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gary adcockRe: ALexa ProRes4444 LogC workflow question
by on Aug 16, 2010 at 1:13:58 pm

[Michael Aranyshev] "How would one tell? I have a bunch of Alexa footage in ProRes 4444. What is a quick way to tell whether it is RGB or YCbCr?"

I used a spectrum analyzer from Tektronix, it is neither cheap nor quick.

It is my understanding that issue was only with the specific build on the cameras I was testing and that later release versions support both formats. I do not have confirmation from Arri (August is holiday time in Europe) .

I am going to go out on limb and assume that if you are shooting as Rec 709 you will be working with YCbCr materials since you have defined that material by working in the Video Rec, while if you are recording LogC you should be working with RGB content on the SxS cards.

gary adcock
Studio37

Post and Production Workflow Consultant
Production and Post Stereographer
Chicago, IL

http://blogs.creativecow.net/24640



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