I took the GH5S with the Leica 8-18mm lens to the PSA Conference in the hope I would get to use it and capture some night skies.  It was mainly a bust most evenings except last night when the skies were clear.  The park is crowded with tourists even at night - and of course 30 - 40 at a time they climb out of busses and vans with bright flashlights - not a care that someone is trying to photograph the stars.I was so happy to get a few shots that I really like.  The milky way is not ideal for this time of year but good enough to test the performance of the GH5S.  In my opinion, it gets 5 Stars.