Fascinating High ISO Video test of the RX10
This is a rather revealing video that I found on Vimeo.com, that starts at ISO 800, and goes all the way to ISO 12,800
So many people have been knocking the RX10's high ISO performance in video, that I thought this footage would look far worse than it does.
ISO 800 and 1600 look fantastic, and ISO 2500 and 3200 look very decent too.
Perhaps the RX10 is not the best performing low light video camera, but it seems to me that it is very usable indoors with any decent indoor lighting available.