Re AFC, do you mean FRC (frame rate control)? 'm not up to speed on this tech. I can't say if this Dell uses it, but I would think not because IPS is pretty slow and the wikis say FRC is a TN (faster) panel tech. On Wed, Jan 8, 2020 at 2:18 PM <graxx@videotron.ca> wrote:

Wire,

Here's the "trend" I was looking for. I don't have the time to put all these separate Excel sheets into one (for now) but if you look closely at the graphs in each document, you will see the "trend" I'm talking about.

What my instrument captured is the fact that, there is no "loss" in the shadows, going from finer and finer RGB increments, from 0 to 65536 code values (equivalent to 16-bit Photoshop color mode), but there is a visible progressive loss in the highlights (staircase pattern). And I'm pretty sure this is independent of monitor Luminance such that, if I was (and I will) to redo these measurements at say, 120 cd/m2 or 160 (as opposed to my current, lowly 60 cd/m2), the relationship between inputs and outputs would not change, it would be the same pattern albeit scaled differently.

Someone could unequivocally conclude from this data, Wire, that, in a 10-bit video environment (which is the case of my NVIDIA video card and (crappy?) NEC PA271W monitor capabilities (remember this model uses 8bit+AFR for an 'effective' 10-bit experience, same as your Dell, which some argue can't be distinguished from true 10-bit panel), detail is *preserved* in the shadows at the expense of the highlights.

You see where I'm going? More to follow 😊

/ Roger