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Visioncolor Impulz Luts


Ed_David
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So is there no LUT out there for 5248?

​Haven't found one yet- might require more than a LUT to get the look. The film look, especially 5248 & Technicolor, appears to be a lot more than simple color remapping and highlight behavior.

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​Haven't found one yet- might require more than a LUT to get the look. The film look, especially 5248 & Technicolor, appears to be a lot more than simple color remapping and highlight behavior.

Yes, there were indeed lots of variables involved in Technicolor. Assuming Technicolor 4 process, you had a light loss from the beam splitter (approximately resulting in an iso of 5) which demanded much brighter sets (maybe you can try adjusting gain or contrast to simulate). There would be some crosstalk on the bipack strip for the red layer (behind the blue on the dual monochrome strips), probably very minor. They used proprietary dyes and matrices. Their shoots were also somewhat art directed by a Technicolor employee to meet their requirements. You had some fringing on the final subtractive prints too because they were essentially 3 color carbon prints, or gum prints on film, which required precise registration. They used to use a "Key"layer (black) to hide it before they ironed out the fringing. But since Technicolor used 3 separate RGB monochrome strips, in theory you should be able to attempt to simulate a print starting with RGB footage, converting to respective complimentary colors, playing around with some filters / grading on CMY nodes etc.. the problem is mainly your source material, i.e the inherent problem with 3D LUTs. 

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