ProRes RAW HQ transcoded to ProRes 4444 is brighter, less green, has greater contrast, increased saturation and significantly higher resolution than the internally recorded S-Log3/S-Gamut3 XAVC S-I codec. Below are screenshots of the HDR footage dropped onto a rec. 709 timeline with a custom curve added to preserve highlight detail and a hue adjustment to normalize skin tones. ProRes RAW has 23.7% greater resolution than the internal codec. Click on screen grabs to enlarge.
And here’s the same ProRes 4444 clip with a small amount of spatial noise reduction in addition to the temporal. Mode faster – radius small – Luma 2 – Chroma 2.
There’s also more color information in the RAW clip than in the XAVC S-I clip:
Mark Spencer demonstrates how the Sony XAVC internal codec falls apart much more easily than the ProRes RAW one when doing an extreme grade:
For the video, we spent a couple minutes trying to match the footage as best as we could without making any adjustments to sharpness.