Fallback headroom when nothing identifies the display: 2x SDR white (one
stop). Deliberately conservative — overshooting the real headroom lets the
OS clip the brightest detail, undershooting only leaves range unused.
DisplayHDR 400 monitors at a ~200-240 nit SDR white have about 1.7-2x.
Fallback headroom when nothing identifies the display: 2x SDR white (one stop). Deliberately conservative — overshooting the real headroom lets the OS clip the brightest detail, undershooting only leaves range unused. DisplayHDR 400 monitors at a ~200-240 nit SDR white have about 1.7-2x.