09.09.2021, 05:26
It just depends of apps. Some apps use native bit depth and gamma of source video and process it in 8 bit if source is 8 bit. Other apps (like Ravinci Resolve) upconvert internally any source to 32 bit depth and process it with better quality. Have no idea what is going on inside Premiere because i don't use it.
I see your example is in Log. It is worst possible scenario for 8 bit because low depth 8 bit tonal data is stretched to even more low bit depth during transformation to normal Rec709 gamma.
Here is what you can do to improve your source further:
If source is really interlaced use customized QTGMC "Very Slow" or "Placebo"
Switch to custom settings
Source Matching: 2xrefined. It will give you more detailed deinterlacing. It is ok to use it with HD sources from modern cameras like yours.
Sharpness 0, to avoid new additional halos.
Final Temporal smoothing 2 or 3 will clean up noise.
(Optional) DeBlock - QED (may help a little bit to remove some codec artifacts)
(Optional) DeGrain - SMDegrain Temporal Radius 2 or 3 will clean up even more chroma noise artifacts.
(Optional) DeBand - GradFun3Mod will fill too empty with fine patterns to avoid banding.
(Optional) In the end you may try to add AddGrain - GrainFactory3 and adjust it to minimal size to bring back some "breathing" to the footage and mix pixel structure a little bit.
Some static chroma artifacts like moire and aliasing are generated by camera sensor itself and near impossible to remove. Spartial Chroma Noise reduction may help a little bit.
Optional filters (especially SMDegrain) will slowdown transcoding a lot.
By the way, export to 10 bit ProRes 422HQ should be way faster than to 10bit x265 and will behave way faster and smoother on timeline during editing without need of any proxy or background render.
I see your example is in Log. It is worst possible scenario for 8 bit because low depth 8 bit tonal data is stretched to even more low bit depth during transformation to normal Rec709 gamma.
Here is what you can do to improve your source further:
If source is really interlaced use customized QTGMC "Very Slow" or "Placebo"
Switch to custom settings
Source Matching: 2xrefined. It will give you more detailed deinterlacing. It is ok to use it with HD sources from modern cameras like yours.
Sharpness 0, to avoid new additional halos.
Final Temporal smoothing 2 or 3 will clean up noise.
(Optional) DeBlock - QED (may help a little bit to remove some codec artifacts)
(Optional) DeGrain - SMDegrain Temporal Radius 2 or 3 will clean up even more chroma noise artifacts.
(Optional) DeBand - GradFun3Mod will fill too empty with fine patterns to avoid banding.
(Optional) In the end you may try to add AddGrain - GrainFactory3 and adjust it to minimal size to bring back some "breathing" to the footage and mix pixel structure a little bit.
Some static chroma artifacts like moire and aliasing are generated by camera sensor itself and near impossible to remove. Spartial Chroma Noise reduction may help a little bit.
Optional filters (especially SMDegrain) will slowdown transcoding a lot.
By the way, export to 10 bit ProRes 422HQ should be way faster than to 10bit x265 and will behave way faster and smoother on timeline during editing without need of any proxy or background render.