Nicolas Hanson

Color Space Transform OFX plugin

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Can someone explain the difference between the Color Space Transform OFX plugin and a Alexa LUT in these examples when the footage is Alexa.

1. LogC, target = Rec709.

2. Rec709, target = Alexa LogC.

Is the color space transform less destructive, is it bases on a formula like theTruelight Video 1 inverse DRT? Why use the Alexa LUT at all to inverse back from log to Rec709?

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The Arri log-c to 709 lut is designed to make your footage look nice,

the OFX is just a technical transform from one gamma to another. The log-c to 709 OFX does not have highlight rolloff, and will push values over 1 easily, but can also be perfectly reversed with a 709 to log-c OFX...

 

 

 

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