User Manual

Table Of Contents
Analyzing HDR Signals Using Video Scopes
When you’re using waveform scopes of any kind, including parade and overlay scopes, the
signal will fit withinthe 10-bit scale used to analyze the signal much differently owing to the way
HDR is encoded. The following chart of values will make it easier to understand how each level
in “nits” (i.e., cd/m2) corresponds to a code value within the 10-bit image scale:
10-Bit Code
Nearest
Value incd/m
2
HDR Display Peak Luminance Capability
1019† 10,000 No commercially available display
920 4000 Dolby Pulsar
889 3000 Flanders Scientific XM310K w/L20 test pattern
844 2000 Dolby PRM 32FHD
767 1000
Sony BVM X300 w/L10 test pattern, EIZO Prominence CG3145,
or Flanders Scientific XM311K
756 900 Flanders Scientific XM650U w/L20 test pattern
742 800 Panasonic TC-55FZ1000U w/L10 test pattern
728 700 Measured on an iPhone XS displaying 50% white
711 600 Canon V2411 (not in burst mode)
691 500 Minimum standard for an “UltraHD” OLED display
635 300
Flanders Scientific DM250 in “HDR preview mode”
w/L40 pattern
593 203
BT.2408 recommendation for diffuse white of SDR
content being intercut with 1000 nit max HDR content
528 108 Dolby Cinema projector
520 100 Standard peak luminance for SDR displays
447 48
Standard peak luminance for SDR DCI projection,
DolbyCinema 3D peak luminance
4† 0 Absolute black
† 0–3 and 1020–1023 are reserved values
While this table of values is useful for understanding where HDR nit levels fall on legacy external
scopes, if you’re monitoring with the built-in video scopes in DaVinci Resolve, you can turn on the
“Enable HDR Scopes for ST.2084” checkbox in the Color panel of the User Preferences, which
replaces the 10-bit scale of the video scopes with a scale based on nit values (or cd/m
2
) instead.
Chapter – 8 HDR Setup andGrading 240