Kodak 2302 manual Available Roll Lengths, Graphs1

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) Graphs1

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.

1NOTICE: 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.