Kodak EKTACHROME 7280 - Manual (Page 3)

KODAK EKTACHROME 64T Color Reversal Film 7280
•
H-1-7280t 3
Diffuse rms Granularity Curves
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
measuring techniques.
2
2.NOTE: Sensitometric and Diffuse RMS Granularity curves are
produced on different equipment. A slight variation in curve shape may
be noticed.
1.0
3.0
2.0
DENSITY
Relative Log Exposure
Densitometry:
Process: E-6
Status A
B
G
R
4.0
0.0
-2.0 -3.0 0.0 -1.0
10
1000
100
10000
1
Granularity SIGMA D*1000
R
G
B
TI2639C 5-05
Spectral Sensitivity Curves
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.
Yellow-
Forming
Layer
Magenta-
Forming
Layer
Cyan-
Forming
Layer
END
1.4 sec
Process:
Effective Exposure:
Densitometry:
E-6
Density: 1.0
700 750 650 600 550 500 450 400 350 300 250
*Sensitivity = reciprocal of exposure (erg/cm ) required
to produce specified density
WAVELENGTH (nm)
2
LOG SENSITIVITY
-2.0
*
-1.0
0.0
1.0
2.0
TI2639D 5-05