Atomos has released AtomOS 11.08.00 which enables the recording of 12-bit ProRes RAW video over HDMI from the Fujifim X-T50 in 6.2K at up to 29.97fps.
You can download firmware 11.08.00 at http://my.atomos.com
The Fujifim X-T50 can record 6240 x 3512 at 23.98/24.00/25/29.97 fps 12-bit RAW to compatible Atomos devices via its Micro-HDMI port. It also features native frame.io camera to cloud integration, 6.2K/30P, 4K/60P, FHD/240P, 4:2:2 10-bit video, up to seven stops of in-body image stabilization and a remodeled hand grip with a more curved design for precision handling.