Ok so, I was testing the experimental branch and I really liked the lighting. There is one thing though that bothers me and a second thing that is the biggest deal and this is about the near-distant fog settings.
So the first thing would be that the adaptation of exposure this time around is quite sensitive so that its reacting very fast to little light changes. If you turn the camera and you have a tad darker area than the one you just looked at it immediately increases the exposure which feels a bit weird. Its a bit irritating so making the exposure adaptation a little bit less sensitive would be cool.
Second thing is that I found the distant fog of the game at a bright cloudless day is starting way to early bleaching out the scenery and since its pure white it doesn't connect to the horizon or blue sky. Normally this distant "fog" is atmospheric scattering that is a bit blueish when the sky is pure blue. White is normally only happening for very cloudy or snowy weathers so its a bit irritating and looks a bit wrong to see it. It kills the immersion at that point. I have a screenshot here to show what I mean.
I really hope that you guys could at least adjust the fog settings pushing it a bit back and giving it a believable color for the weather type that is going on. I would be so happy. Thanks for this awesome game and everything else you did with the lighting I like a lot !!!