Just got the new GH3 and was testing a few things at the same time:
High bit rate and ALL-I codec gives you a lot more to work with. I have been able to push the shadows a lot harder than on my T2i. Dynamic range feels about 1 to 1 1/2 stops higher. 1080 by 60fps is awesome at 50bits.
No real color grading: just pushed the shadows in " standard " picture profile.
12-35 Lumix lens (2.8 IS) stopped down from 8 to 11stops.
proaim 8ft jib.
Music by: Andrew Lawrence King: The Glory of the West