Because no displays can currently exhibit the entire color gamut and brightness up to 10,000 cd/m2 specified in ITU-R BT.2100 PQ, two variants of Type 1 HDR monitors were settled upon by the EBU: Grade 1A HDR – the preferred specification – and Grade 1B HDR – a reduced gamut and/or limited brightness specification. Yet, one year prior to the publication of USER REQUIREMENTS FOR VIDEO MONITORS IN TELEVISION PRODUCTION by the EBU in 2019, a group of experts from the BBC, CBC, EBU, IRT, NRK, RAI and ZDF got together to perform a battery of tests on six professional, first generation HDR-capable video monitors, including OLED, LCD with local backlight dimming and dual-layer LCD, and concluded that none of the monitors tested met the EBU’s published specifications, with “no monitor yet even falling within the Grade 1B tolerance boxes, which are considered as interim (i.e. relaxed) primaries, as a first step towards the full Grade 1A specification.” So, it came as a surprise to hear Aron Randhawa, Marketing Specialist at Canon Europe, claim during a video interview that the recently announced Canon DP-V2730 reference display was a Grade 1A panel. Even without being able to test the display, just a glance at the specs will tell you that it comes up short: a Grade 1A HDR monitor must be capable of 2160p 120, whereas the Canon is only able to manage UHD 60.
In the context of the conversation, he is stating that the contrast ratio is Grade1A. According to the Canon website, this monitor has “Grade 1A rating achieved for contrast ratio, peak luminance, black level and luminance uniformity” in EBUTECH3320 m
Aron says the Canon DP-V2730 is a Grade 1A HDR panel, which it is not.