An aside:
I did some tests using C1 A7R3 vs IQ100, to find out why the Sony color was always slightly disappointing. Locked on tripod, exact same Zeiss OTUS lens on both bodies (I have adapters for both) The Phase back gave far better color than the Sony, which leads me to the conclusion that Phase does not put the same effort into profiles for Sony sensor than their own. (both are Sony sensors of course, and pixel size is very close,) I guess that isn't that surprising, but it is saddening.
Next, is to see if I can create my own C1 profile for the Sony, and better Phase's poor effort. Annoyed that I'm having to do this, when I pay good money for 'The worlds best RAW converter'. Sigh.