Re: Firmware 1.3 is out
 

This is great news--it's been a bit punishing to deal with S-log 4:2:2 with the prior limitations! Also s-log 60 frame capture seems to be supported which was another sticky wicket (will be shortly tackling the color correction required to match non s-log overcranked footage with 24 s-log footage within the same scene...ugh)

Re: Firmware 1.3 is out
 

Is it possible with this 1.3 upgrade to record a REC709 type of LUT to the internal 4:2:0 SxS cards? That would be most helpful as recording an S-Log output to those cards would be pretty much useless in post.

Re: Firmware 1.3 is out
 

Yes. That is how the S-Log mode works. Your viewing LUT is recorded to the internal SxS cards.

Re: Firmware 1.3 is out
 

Looks like Sony got that one right.