Originally Posted by GeorgeAB
You cannot fully equate consumer video with either DCI, or Dolby Cinema, or professional video at 12 bits, cinema white point, P3 color, EOTF, etc. Consumer video is an adaptation of professional cinema formats. Some directors and cinematographers oversee and approve consumer video conversion masters, others leave it up to post-production technicians they have confidence in based upon past work, reputation, etc.
Sure, that much is a given, and hence my original question, which the spec you suggest barely addresses (and certainly not for the home, or usefully for high contrast projectors which have been available for the last ~10 years...)
is the answer to my original question - no, there aren't applicable reference standards for projection viewing environment in the home? Or yes, they do exist, but it isn't this spec? It's this A.N. other spec?
What I'm looking for is hard science and standards based information on how a high native contrast projector and the environment it is in should be set up in order to get a "reference" quality image. So far I can't actually find anything.
My thought process and reason for my queries is this:
Many of these projectors achieve blacks lower than even the CRT reference monitors traditionally used (I see <0.001 nits in my room black floor off the screen without resorting to dynamic dimming; info in Dolby's Pulsar monitor white paper suggests black on a Pulsar or CRT reference is around 0.005 nits). There are huge threads on here about home theatres striving to be as black as possible for projection - which actually further increases the delta to the "reference" viewing environment discussed for the way the content is mastered for home viewing.
Now I'm not going to lie - my room when calibrated to REC709/2.4 gamma, 56nit peak white, <0.001 nit black, no background light results in a very pleasing, extremely contrasty image with plenty of detail. Any outsider who views it is awestruck that such an image is available at this size in a home. But I'm left dissatisfied - I have all the gear and software as used by professionals, and the ability to calibrate it to whatever standard I'd like... except they don't seem to exist for home projection!
In particular the area I long to be able to "know" is correct is the display of the lowest levels (1-5%) which is exactly where the room environment and native contrast of the display have the biggest effect.