Vertigo

Julian, your samples look great and will probably make me jump on the GH4 bandwagon.
 
I have a question though : what is the fastest shutter speed one can set in 4K video mode at 24 and 30 fps ? Seems a silly question, but I plan to extract stills from 4K footage for some project, and need shutter speed faster than 1/2000 s for that, even though the motion will not look smooth in the video.
 
I know that the gh4 has a 1/8000 s capable still shutter, but my question really is about the electronic, rolling, video shutter mode. It seems I cannot find the information on the web yet, hence my question to you happy GH4 tester ;o)
 
Thanks again for your very stimulating sample footage.