Howard Roll wrote:There is currently no raw transmission standard, nor were HDMI and SDI originally designed to be raw data transport streams. To send 12 or 16 bit data down traditionally 10 bit lines utilizes packing/unpacking schemes to encode/decode information. Each manufacturer has their own system of encoding data to fit within the pipe.
SDI, even 12G, is not able to transmit the full scope of Braw, especially from the 12K, at low compression and HFR. That packing refers to UHD only and is a form of recompression. This is why the Ursas don't have raw output to the VA. HDMI 2.0 and 2.1+, I think has a higher capability bandwidth, so the restriction is political and not technical, necessarily. However the Pockets don't record Braw out either.
I'm nonetheless going to buy the 7" HDR VA, since it's dual use for me follows my policy of buying gear - Because of space restrictions in my edit suite I cannot fit a 4K Duoscope, for scopes and it is quite a useful on set client monitor too. Plus it has backup codedcs such as DNxHR. It's price is significantly more value than SmallHDs too and their scopes are useless for post.