No problem to help but…
1/ I’ve no idea what’s RPU (I don’t think that’s matter, but maybe if I know…maybe I can more easily understand what you waiting on the picture)
2/ Event the filenames speak for themselves I still have some questions :
a/ Does the lense matter ? Do you have any preference about the lenses (ultra wide, wide, zoom etc…) or I select the most sharpness lenses I have ?
b/ Same question about the apertura.
c/ Same question about the speed.
d/ Same question about the ISO.
e/ Same question about the depth of field.
e/ Is the scene matter ? (like wall of brick, ground with sand, fabric, etc.) or anything are ok.
The D850 can get the mirror up, wait some time, then take the picture (I think you know that), so the vibration came from the mirror does not impact the picture, do you need I activate that ?