![]() ![]() Since you like referencing these standards, you do know that Vesa has HDR standards as low as 400 and 600 nits right?Īnd I think you are conflating wide gamut vs Dynamic Range. Does that make HDR10 NOT HDR?Įventually, the market and the industry to congregate behind 1 or 2 SET of standards (since it is not only about 1 number or feature). Dolby Vision, for example, supports dynamic metadata. But in itself does not mean violating those standards equate to a non-HDR image. No, there are STANDARDS that attempts to address HDR features across products and in video production. "HDR is also a set of minimum requirements" It is not required or needed to display HDR images. Just A transform function? ,"Īnd HLG is again just a standard of how to handle HDR and SDR. The lack of full horizontal color data can be noticed in certain cases, such as colored text on colored backgrounds where font can become blurry.Ĥ:2:2 (top) and 4:4:4 (bottom) as seen on 12 point font In that respect the PG27UQ is able to do quite well, with dE's below 3 on color saturation sweeps.Īs for chroma subsampling, the 4:2:2 mode kicks into effect when in HDR mode at 120Hz or above. The HDR10 media profile targets the BT.2020 space, so it's important to see how well devices designed for the more limited P3 gamut do inside this subset. Originally in delta ICtCp format, which reportedly describes HDR more accurately, the metrics are in delta E for ease of comparison. The HDR gamut coverage matches what we saw with the SDR 'wide gamut' mode, confirming that it covers around 76% BT.2020 and 92% DCI-P3. So there's definitely room to spare with respect to the 1000 nit minimum requirement. To note, in SDR mode the monitor reports a "SDR-BT1886" EOTF (gamma) instead of "SDR-sRGB" when in YCbCr mode, but in HDR mode the EOTF is "HDR-ST2084".Ĭhecking back on HDR brightness, we see that the peak brightness is around 1236 nits, reached when a 10% area of the screen was white. As I don't have an HDR test pattern generator currently, we've utilized madTPG for the HDR pattern generator. New to our monitor workflow, we've utilized some of CalMAN's recent HDR Analysis workflow additions, again in the SpectraCal suite. ![]()
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