Messing with the A7R II - good, but I would wait if you can till the A7S II - rolling shutter issues.  Also save some cash.    Here's my receipe that I'm liking: COLOR MATRIX  - Pro, not s gamut - reds feel more red COLOR GAMMA - CINE4, not slog - cleaner highlights.  Slog2 looks weird with an 8 bit codec how it gets noisy in highlights Black Level: 0 Black Gamma > Range: Middle , Level: -3 Knee > Mode: Auto , Auto Set > Max Point: 95 , Sensitivity: Mid Colore Mode: Pro Saturation: +8 C