Runco Q-750d Ultra Series Installation & Operation Manual page 84

Operation
• Color Temp: Select Color Temp from the Display Color - Common Settings menu to
adjust the color temperature. Color temperature establishes the "color of gray" by
adjusting the 75% white point to various color points.
What are "color points?" A "color point" is an x/y coordinate pair that defines a
color's location on the standard CIE chromaticity graph, shown in Figure 4-7. (CIE
stands for "Commission Internationale de l'Éclairage" (International Commission on
Illumination), the organization responsible for color measurement and management
standards.)
1.0
y
0.9
0.8
0.7
Green
0.6
0.5
Cyan
0.4
D50
D65
D93
0.3
0.2
0.1
Blue
0.0
0.0 0.1 0.2 0.3
Figure 4-7. CIE 1931 Chromaticity Diagram
• Simple: Select Simple mode from the Color Temp menu (with the Q-750d Ultra, this
is the only choice) to choose one of four color temperature presets: 5500K, 6500K,
7500K and 9300K. The default setting, 6500K, is appropriate for most situations.
Higher settings produce a "bluer" picture; lower ones impart a reddish hue to the
image.
Table 4-2 lists the x- and y-coordinates for each color temperature preset.
Table 4-2. Color Temperature Presets and Associated Color Points
Color Temperature Preset
5500K
6500K
7500K
9300K
Yellow
Red
Magenta
0.4 0.5 0.6 0.7 0.8
x
0.332
0.313
0.299
0.284
68 Q-750d Ultra Series Installation/Operation Manual
0.9 x 1.0
Associated x/y Values
y
0.348
0.329
0.315
0.298