ARRI DigitalGeneral CategoryTechnicalNoise in Blacks in ProRes 4444 LogC encoding
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Author Topic: Noise in Blacks in ProRes 4444 LogC encoding  (Read 1007 times)
gbalaji
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« on: February 27, 2011, 04:05:47 AM »
I and my DP agree to see noise in Blacks of Alexa footage?

Is it to do with ProRES compression?
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G.Balaji
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DIT,File based workflow & Post Supervisor fo

Michael Borenstein
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« Reply #1 on: February 28, 2011, 04:39:24 PM »
Hello,

In order to get a deeper understanding of what you're seeing can you tell me what ISO you were shooting at?  Also, are you seeing noise or compression artifacts? 

ProRes isn't noiseless, especially in the higher ISO's.

Thanks,
Mike
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Michael Borenstein
Digital Service Manager, Arri Inc.

gbalaji
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« Reply #2 on: March 01, 2011, 12:30:05 AM »
Shot @ 800ISO.

We are seeing Compression Artifacts as well as noise.
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G.Balaji
Digital Cinema Designer / Evangelist
DIT,File based workflow & Post Supervisor fo

Michael Borenstein
Digital Service Manager, Arri Inc.
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« Reply #3 on: March 02, 2011, 12:29:37 PM »
Please take a still image (Grab) and email it to me at mborenstein@arri.com.  I would like to see what you are looking at.

Thanks
Mike
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Michael Borenstein
Digital Service Manager, Arri Inc.

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