Read Acquisition Metadata for clips from Sony cameras
Sony cameras store things like color gamma in a section of metadata called "Acquisition Metadata." This info does not show up anywhere in Premiere's metadata display. Please read in this info and make it available. It is very time consuming to have to look it up for each clip in Sony's Catalyst Browse software.
Scott Crozier commented
Attached are some images of metadata (supposedly one of premiere's selling points) that Premiere is throwing away or ignoring.
Please read this useful data! Maybe even apply a default sony lut based on it if you have time! (you know like you do for arri and red!)