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Apple Color: recipe for changing from old color science to new one?

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Paulo Jan
Apple Color: recipe for changing from old color science to new one?
on Jan 9, 2010 at 7:09:26 pm

Hi all:

I have some RED footage shot with a build 21 camera, and now that I need to grade it in Color, I've found out about the color science problem (the current RED plugin for Color doesn't support build 21, and it imports footage shot with it "wrong", with a strong blue hue). Of course, I could transcode all the footage to ProRes 444 and grade from there, but if I really wanted to work with the original RAW files with Color, is there any recipe to correct the build 21 footage and leave it in a "normal" state, before starting with the proper grading? (I.e., to compensate for the errors that the build 21 incompatibility causes).

I've had a quick look at the Reduser.net forums, and it seems to be a hard problem, and I've also tried myself, but little success. It seemed at first like a mere color temperature problem, but I tried taking some build 21 footage and lowering its color temp, and it doesn't look *exactly* like the footage incorrectly imported in Color.


Thanks in advance,

Paulo.



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David Battistella
Re: Apple Color: recipe for changing from old color science to new one?
on Jan 12, 2010 at 3:58:36 am



I am not in front of my machine but I think that the tint control in the RED tab in Color could be your best friend.

open a shot in Build 21 RED Alert. Check the tint. Maybe match it in the RED tab and see if that is your starting point.

In any case you might want to stick to the Camera RGB to get the most out of your footage.

David


Peace


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Uli Plank
Re: Apple Color: recipe for changing from old color science to new one?
on Jan 12, 2010 at 8:47:18 am

Problem is: the "New Color Science" doesn't easily translate into just a tint to be fixed, in particular when it comes to skin tones. IMHO, there is no simple recipe, just eyeballing and hard work.

The only alternative is transcoding the whole footage to ProRes 4444 with a tool that has the "New Color Science", like Clipfinder.

Director of the Institute of Media Research (IMF) at Braunschweig University of Arts


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Paulo Jan
Re: Apple Color: recipe for changing from old color science to new one?
on Jan 12, 2010 at 10:05:39 pm

...which is exactly what I'm doing for my project, except that for some reason my copy of Clipfinder won't allow me to render to ProRes 4444 (the menu with the codecs in "Quick Render" only has 422 HQ and 422) (I'm using version 2.1). So I'm opening each file from Clipfinder with Red Alert and exporting it by hand. Fortunately it's just a commercial with not too many shots.



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Uli Plank
Re: Apple Color: recipe for changing from old color science to new one?
on Jan 13, 2010 at 7:55:19 am

Get the beta, it works.

Director of the Institute of Media Research (IMF) at Braunschweig University of Arts


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Colin Hubick
Re: Apple Color: recipe for changing from old color science to new one?
on Jan 21, 2010 at 7:18:22 pm

or RED Rushes


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Chad Terpstra
Re: Apple Color: recipe for changing from old color science to new one?
on Mar 9, 2010 at 12:08:49 am

What Beta?


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