Today I shot a grey/color chart with the Panasonic GH3 at ISO 200, my new on-camera light “Kaiser Star Cluster” and the 12-35mm at f4.0, showing different picture settings at 0 0 0 0 with manual in-camera white balance matched to 5600K.
Based on the dynamic range that is visible on the grey chart, I’d choose NATURAL or PORTRAIT as a base for my future projects.
Furthermore I find the NATURAL and STANDARD colors most pleasing and accurate by default whereas NATURAL has a little less blue shift.
I additionally learned that with a correct manual white balance the camera adds a little too much blue so I’m going to consider that in my camera settings.