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Modulation-Transfer Function Curves
200
100
70
50
30
20
10
7
5
Exposure: 3200K Tungsten
3
Process: ECN-2
2
Densitometry: Status M
1
1
2
3 4 5
10
SPATIAL FREQUENCY (cycles/mm)
TI2647B
This graph shows a measure of the visual sharpness of
this film. The x-axis, "Spatial Frequency," refers to the
number of sine waves per millimeter that can be resolved.
The y-axis, "Response," corresponds to film sharpness.
The longer and flatter the line, the more sine waves per
millimeter that can be resolved with a high degree of
sharpness—and, the sharper the film.
Diffuse rms Granularity Curves
3.0
Process: ECN-2
Blue Density
Green Density
Red Density
Blue Grain
Green Grain
2.0
Red Grain
1.0
0.0
0.0
1.0
2.0
TI2647C
LOG RELATIVE EXPOSURE
To find the rms Granularity value for a given density, find
the density on the left vertical scale and follow horizontally
to the characteristic curve and then go vertically (up or
down) to the granularity curve. At that point, follow
horizontally to the Granularity Sigma D scale on the right.
Read the number and multiply by 1000 for the rms value.
Note: This curve represents granularity based on modified
4
measuring techniques.
4. Sensitometric and Diffuse RMS Granularity curves are produced on
different equipment. A slight variation in curve shape may be noticed.
4
R
G
B
20
50
100
200
600
B
G
R
0.10
0.05
0.04
0.03
B
0.02
0.01
G
0.006
R
0.005
0.004
0.003
0.002
.001
3.0
4.0
5.0
KODAK VISION3 500T Color Negative Film 5219 / 7219 / SO-219 H-1-5219t
Spectral Sensitivity Curves
4.0
3.0
Yellow-
Forming
Layer
2.0
1.0
Effective Exposure: 1/25 sec
Process: ECN-2
Densitometry: Status M
Densitry: 0.2>D-min
0.0
250
300
350
400
WAVELENGTH (nm)
*Sensitivity = reciprocal of exposure (erg/cm ) required
TI2647D
to produce specified density
These curves depict the sensitivity of this film to the
spectrum of light. They are useful for determining,
modifying, and optimizing exposure for blue- and
green-screen special-effects work.
Spectral Dye Density Curves
1.8
Process: ECN-2; D-mins subtracted
1.6
1.4
Midscale Neutral
1.2
Magenta
Cyan
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
400
450
500
550
TI2647E
WAVELENGTH (nm)
These curves depict the spectral absorptions of the dyes
formed when the film is processed. They are useful for
adjusting or optimizing any device that scans or prints the
film.
Note: Cyan, Magenta, and Yellow Dye Curves are
peak-normalized.
Magenta-
Forming
Cyan-
Layer
Forming
Layer
450
500
550
600
650
700
2
Yellow
Minimum Density
600
650
700
750
800
750
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