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Premiere to DCP Workflow

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Peter Garriott
Premiere to DCP Workflow
on Feb 20, 2018 at 8:27:04 pm

I have a project that was colored in Baselight in Rec 709 gamma 2.4. It was exported in ProRes and re-conformed in Premiere. I'm now going to deliver it to a post-house to have a DCP created.

Since Premiere doesn't manage color profiles, does the ProRes technically still exist as Rec 709 gamma 2.4 within Premiere? Or is Premiere converting it to sRGB when I export the project?

Thanks.


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Chris Wright
Re: Premiere to DCP Workflow
on Feb 21, 2018 at 3:08:42 am

anything imported into premiere gets forced converted to rec. 709 gamma 2.2. so you'll need a lut transform.
see what the post house wants. jpeg2000, mxf, xyz color, gamma 2.4, white point D65, D63 etc...

premiere's wraptor DCP only accepts rec. 709 gamma 2.2, D65 so you'll need a lut for it. or you can use easydcp, dcp-omatic

if you do it yourself, make sure you use the right color primaries
DCDM XYZ D63 (6300K, 0.314, 0.351 white point) gamma 2.6
RGB color space parameters
Color space White point Primary colors
xW yW xR yR xG yG xB yB
DCI-P3 Theater 0.314 0.351 0.680 0.320 0.265 0.690 0.150 0.060
https://forums.creativecow.net/thread/394/241


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Peter Garriott
Re: Premiere to DCP Workflow
on Feb 21, 2018 at 8:32:20 pm

Thanks Chris. The post-house is simply asking for us to provide what color profile the project was colored in, then they'll convert it.

Since it's now gamma 2.2 in Premiere, should I still tell them it's 2.4 to make it accurate?

Or as you suggested, apply a lut transform to 2.4 then provide them the film? If so, could you point me to the best way to perform the lut transform?

Thanks.


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Chris Wright
Re: Premiere to DCP Workflow
on Feb 22, 2018 at 3:03:29 am

it depends if the color is burned in via utility color profile converter or was simply assigned in metadata.
metadata gets ignored in premiere. you should compare it against AE/photoshop for quality control.


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