SpectraCal has a nice white paper on this topic:
http://www.spectracal.com/Documents/White%20Papers/BT.1886.pdf 

C J Flynn
Cinema Test Tools

On Aug 7, 2017, at 01:24 000AM, Todd Gilpin via DCPomatic <dcpomatic@carlh.net> wrote:

Hi Carl,

I have color graded a project in Resolve 12.5, color management is set to Rec.709 gamma 2.4, monitored the same on a Flanders. Taking it in to DCP-O-matic and I see the Rec.709 preset is locked at 2.2. If I change the gamma it changes the preset to BT1886. Is it safe to say this would be correct? I have seen debate as to whether BT1886 is the same as Rec709, but with a 2.4 gamma spec. I'm not an expert on this.

Thanks in advance and thank you for the work you do on this software.

Thanks
Todd Gilpin

Sent from my iPhone
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