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Kodak EL Camera Film
Technical Information Data Sheet – TI2104
August 2006
1. Support
Dimensionally Stable Support
EL Camera film 4 mil (0.004 in., 0.10 mm) Estar base
2. Dimensional Stability
Dimensional stability is an all-inclusive term. In photography, it applies to size changes caused by
changes in humidity and in temperature, and by processing and aging. The absence of solvent in the Estar
base is one of the reasons that Estar base films show excellent dimensional stability. The dimensional
properties of the Estar base may vary slightly in different directions within a sheet; the differences that
may exist, however, are not always equal in both the length and width directions.
Differences in size change between length and width should be within 10 percent of each other.
Determined in accordance with ISO Standard.
Thermal Coefficient of Linear Expansion
Unprocessed or Processed 0.001% per °F (0.0018% per °C)
Humidity Coefficient of Linear Expansion
Unprocessed 0.0016% per % RH
Processed 0.0014% per % RH
Processing Dimensional Change
Dependent on drying conditions