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Exposure
Relative Exposure Index
Orientation
Emulsion exposure
Exposed through base
These indexes are provided primarily as indicators of the relative speed of this film when compared with
other Kodak graphic arts materials when processed in lith developers.
The pulsed-xenon value indicates the film's relative speed to pulsed-xenon illumination as measured by a
light integrator. Index numbers for the other light sources can be used with photoelectric exposure
meters to help establish trial exposures.
One camera stop increase is indicated in the ASA System by doubling the index number and in the DIN
System by increasing the number by three.
Examples of Camera Exposures
Camera-Line- For lith developers
For a same-size (1:1) line reproduction with two 1500-watt pulsed-xenon lamps in reflectors about 3 feet
(0.9 metre) from the center of the copyboard, expose for about:
15 seconds at f/22 (exposure to the emulsion)
30 seconds at f/22 (exposure to the base)
Contact- Processable in lith developers
Starting-point examples of exposure are given below when using a modified Kodak adjustable safelight
lamp, or equivalent. Set the lamp at 16 volts at a distance of 5 feet (1.5 metres) from the exposure
plane—approximately 4 footcandles (43 lumens per square metre).
To emulsion
Through base
1
With a Kodak Wratten gelatin filter / neutral density filter No. 96 (0.9)
System
ISO/ASA System
ISO/DIN System
ISO/ASA System
ISO/DIN System
Pulsed-Xenon
Tungsten or Quartz-Halogen
5
8
2
5
1
5 to 15 seconds
1
10 to 30 seconds
4
7
2
3
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