Delayed several times, now finally released: Panasonic just released the firmware update 2.1, which adds 12bit RAW output via HDMI to the Lumix S1H. Signals in 5.9K, 4K as well as anamorphic 3.5K (4:3) can be output. Currently, only the Atomos Ninja V monitor/recorder can record in ProRes RAW.
An AtomOS Ver10.52 beta update is now available, which supports recording in the formats 5.9K to p29.97 and 4K/DCI to p59.94. If you want to work anamorphically in RAW, you have to be patient for a while. This recording option will be added for the Ninja V in August, according to Atomos. By the way, the link to the AtomOS 10.52 beta version can&t be found on the support page as usual, but has to be requested at 
please ask for it.
V-Log or Rec.709 can be selected on the camera&s live view monitor during RAW output. Auxiliary functions such as wave form, vectorscope, luminance spot meter and zebra pattern can be used during RAW output. Also a
new LUT for the V-Log/V-Gamut conversion is especially for the RAW output of the S1H offered by Panasonic.
Thus, the Panasonic S1H in combination with the Ninja V can now unfold its full potential as a 6K full format RAW camera -- not a day too soon, because instead of the usual July summer slump, we&re experiencing a kind of early virtual IBC with several exciting camera presentations (Canon R5 / R6, Blackmagic URSA Mini Pro 12K and later today the Sony Alpha 7S III), where it&s important to keep up.
The RAW-via-HDMI functionality was originally supposed to be part of v2.0 update for the S1H, but was held back in May to make quality improvements.
;)
more infos at bei av.jpn.support.panasonic.com
