Colour issues when exporting prores raw

Hi all,

I have just starting working with Prores raw and am finding that when it comes to exporting out my colour adjustments the exported files are very different.

This is current workflow:

- I convert my colourspace to S-Gamut3.Cine/S-Log3. I like the flat/grey colourspace and am only really fine tuning from this starting point.

I initially exported to H.264 as I usually do but the colours were very off. Too much contrast chiefly.

I did a bit of research and read that I should be exporting prores raw as a quicktime with the codec 422 or 422 HQ and in the Rec 2100 PQ colour space. Is this correct?

I have processed out a few tests but the colours are still off. 

I have attached screengrabs of the results. The first image is the H.264 and the second is the QT. 

These have not been denoised yet. 

I am working off a calibrated Eizo screen.

Am I missing an important part of the workflow when working with raw?

Thank you in advance for any advice. 

Yours,

Bryony