Just learned this and thought I'd share FWIW...
For years I've profiled my monitor to D65/120CD/m2. I've always felt is was a touch too cool, but used it since that's what "everybody" used. I just bought a new 5K display and my old i1 had failed, so had to buy a new profiling head. While waiting for them I did some research and learn that D50 and a brighter 160 CD/m2 has been adopted as the new ISO standard monitor profile spec. In Googling it, I even found reference where CaptureOne is recommending D50, though with 120 CD/m2. But then I've been in the CaptureOne development workroom in Copenhagen, and it is a fairly dim, color managed environment. Anyway, profiling head and monitor arrived yesterday and I tried it. First thing I notice is it definitely appears warmer, almost brown like bad smog, but interestingly "as shot" WB finally looks like it should to my eyes. Cool, +1 pt. Next, the brightness sounded too bright, but combined with the new warmer white, it seems about the same relative brightness overall compared to D65/120 in my normally lit environment. I may dial it back to 140 or 150, but am going to live with it as is for a few days at least.
For years I've profiled my monitor to D65/120CD/m2. I've always felt is was a touch too cool, but used it since that's what "everybody" used. I just bought a new 5K display and my old i1 had failed, so had to buy a new profiling head. While waiting for them I did some research and learn that D50 and a brighter 160 CD/m2 has been adopted as the new ISO standard monitor profile spec. In Googling it, I even found reference where CaptureOne is recommending D50, though with 120 CD/m2. But then I've been in the CaptureOne development workroom in Copenhagen, and it is a fairly dim, color managed environment. Anyway, profiling head and monitor arrived yesterday and I tried it. First thing I notice is it definitely appears warmer, almost brown like bad smog, but interestingly "as shot" WB finally looks like it should to my eyes. Cool, +1 pt. Next, the brightness sounded too bright, but combined with the new warmer white, it seems about the same relative brightness overall compared to D65/120 in my normally lit environment. I may dial it back to 140 or 150, but am going to live with it as is for a few days at least.