There are a few reviewers and sites claiming that the Panasonic GH5S beats the Sony a7SII at low light performance and I just don’t see it. Granted under some lighting conditions the Panasonic GH5S looks better sometimes, but most of the time the Sony a7SII looks slightly more detailed. Colorwise preference plays a big part and I generally prefer the more cinematic look of the a7SII footage being presented, but the GH5S can be graded to look like the a7SII, but take a look for yourself. I would generally agree that these cameras are surprisingly close in performance. Panasonic certainly created an amazing professional video camera and I would much rather maneuver the Panasonic GH5S with light glass attached than a fully loaded Sony a7SII.
For right now I am just going to clump all the videos together for you to pick and choose what you want to watch, but maybe at some point in the future, I will do separate posts with some of the best AF tests, ISO tests, reviews and sample footage. There is a ton of video out there since due to the nature of this camera and there will be quite a bit more every day as videographers get their hands on this very interesting camera.
Panasonic GH5S: B&H Photo / Adorama / Amazon