Hello, I am working with DPX files in After Effects CS6 (Mountain Lion) that were generated from raw Alexa files with no intermediate color grading or treatment straight from Technicolor. My problem is this: I am trying to color correct the DPX files to match Avid DNxHD color graded reference quicktimes that were genereted from the same DPX files using a LUT and a CDL. In the past I have never NOT been able to match color perfectly using LEVELS by adjusting the color in each color channel individually while comparing it to the clip I am matching it to. Not only do I find it impossible to match the DPXs made from Alexa raw footage to a color corrected version of this same clip that is in quicktime DNxHD format but I am finding the red channel in the DPX files behave in ways that are unlike anything I have ever worked with before. I have done extensive research in regards to this issue to no avail. Technicolor has supplied a LUT for NUKE and SHAKE that along with a CDL, is supposed to recreate the color grade of the quicktimes. I have used Colorista free to input the CDL values as well as LUT buddy to incorporate the LUT that I was given with no luck. Even compensation with levels does not work because the red channel will NOT cooperate. I also used the LUT utility in After Effects with the same results. I even contacted the person in charge of such things at Technicolor and they admitted that they gave up on After Effects in regards to providing a solution to color matching Alexa footage that has been converted to Avid DNxHD and baked with a LUT and CDL. I can't be the first person to have run into this issue and there MUST be a solution out there that doesn't involve switching to Nuke. Anybody?
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