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Data Sheet—6 Copyright, Eastman Kodak Company, 1999
TI2497 Issued 11-99
14) Available Roll Lengths
For information on available roll lengths and formats of KODAK Black-and-White Print Film SO-302 / ESTAR Base
contact your Kodak Professional Motion Imaging sales representative.
For prints released with SDDS, please specify on your order NO edge code (print).
15) Graphs
1
Data for each of the following characteristics was obtained for film processed in Process D97:
MTF
A) (11-99)
Note: These photographic modulation-transfer values were determined by using a method
similar to the one described in ANSI Standard PH2.39-1977(R1992). The film was exposed with
the specified illuminant to spatially varying sinusoidal test patterns having an aerial image
modulation of a nominal 35 percent at the image plane, with processing as indicated. In most
cases, the photographic modulation-transfer values are influenced by development-adjacency
effects and are not equivalent to the true optical modulation-transfer curve of the emulsion layer
in the particular photographic product.
Characteristic
B) (11-99)
Spectral Sensitivity
C) (11-99)
Gamma
D) (11-99)
Gamma is a measure of the film contrast. Gamma is the slope of the straight-line portion of the
characteristic curve. Slope refers to the steepness of a straight line determined by taking the
change in density from two points on the curve and dividing that by the change in log exposure
for the same two points. The formula for calculating gamma is D-min + 0.95 density to + 0.50
LogE.
Net Fog
E) KODAK Developer D-97 (HQ) at 70°F (8-99)
The minimum density or smallest amount of density in a film is known as D-min; it is the density
of the clear ESTAR base plus a little bit of "fog" in the emulsion. In the graph identified as
TI2497E, "NET FOG" is defined as D-min minus base density. The graph shows emulsion "fog"
in density versus increasing development times through the hydroquinone (HQ) based D97
Developer.
1
NOTICE: The sensitometric curves and data in this publication represent product tested under the
conditions of exposure and processing specified. They are representative of production coatings, and
therefore do not apply to a particular box or roll of photographic material. They do not represent
standards or specifications that must be met by Eastman Kodak Company. The company reserves the
right to change and improve product characteristics at any time.