Sineimage NHK 11 Steps Grayscale Chart(γ=0.45) with Colors
|
Model
|
/
|
|
Type
|
Transparent
|
|
Size
|
Effective:240 x 180mm (Chart size: 320×290mm) D240
|
|
Ratio
|
4:3
|
|
Material |
Film |
NHK 11 gray scale (gamma = 0.45) with 3 colors mainly test saturation. The gray scale represents the level of different brightness from darkest to brightest. The more intermediate levels, the more delicate the effect of the picture can be presented.
The transmittance and color concentration of NHK 11 gray scale test card (gamma=0.45):
|
Step |
1
(white) |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
Background |
|
Transmittance (%) |
74.1 |
61.7 |
50.1 |
40.7 |
31.6 |
23.4 |
16.6 |
12.0 |
7.6 |
4.5 |
2.0 |
22.4 |
|
Concentration |
0.13 |
0.21 |
0.30 |
0.39 |
0.50 |
0.63 |
0.78 |
0.92 |
1.12 |
1.35 |
1.70 |
0.65 |
|
Color |
blue-green |
yellow |
red |
|
Concentration |
1.00～1.20 |
1.60～1.80 |
1.65～1.85 |
|
Filter |
70% |
50% |
|
