Italian film maker Aldo Ricci made the little video above to test the new firmware updates for the Canon EOS C100 and EOS C300. Among other things the firmware pushes max ISO up to 80000, and that’s what tested in the video. A Canon EOS 5D Mark III with an EF 70-200 f/2.8L IS lens were used. Settings: k4400, C LOG, no colour grade.
Unfortunately the firmware for the EOS C300 has been temporarily put offline because of a bug they found.