While photographing last night's Mets game verse the Nationals I decided to grab a couple slow motion shots with the GH5 and see what I could come up with in Premiere. I also took images with the camera's burst mode and 6k photo mode to compare the results. The images were also taken with a relativly high ISO for a mirrorless camera, bouncing between 2000 and 3200.
Working with the GH5 was a blast at the game. I found myself switching back and forth between burst mode, 6k photo mode and video mode with variable frame rate enabled. One of the few things that bothered me with the camera was the lag in 6k photo mode. Normally I expect for an image to be taken when I click the shutter button. In burst mode this is the case, but when switched to 6k photo mode there is a noticeable lag from clicking the shutter to when the camera actually begins the recording from which you can draw the images from.
Another slight con comes when switching from video mode and photo mode and vice versa. The ISO settings in the camera do not adjust. For example, while shooting stills I had the ISO set to 2500 so that I could boost my shutter speed. For glass, I used a Nikon 300 f4 with a metabones speed booster. With this setup I was able to shoot around 1/2000s. When I went to video the shutter automatically switched to 180 degrees but the ISO stayed stuck at 2500, blowing out the image. I had to manually switch the camera to ISO 800, giving me a much better exposure. I would have liked to see the camera be able to remember your ISO settings between photo and video mode and adjust itself.