Dimensional Stability

The dimensional stability of aerial films is of particular interest and importance in accurate mapping and in the reproduction of maps.

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 ESTAR Base is one of the reasons why ESTAR Base films show excellent dimensional stability. The dimensional properties of ESTAR Base may vary slightly in different directions within a sheet; the differences that may exist, however, are not always between the length and width directions.

Temporary Dimensional Changes

Thermal Coefficient of Linear Expansion:

0.001%	per degree F of change

0.0018%	per degree C of change


Humidity Coefficient of Linear Expansion (Unprocessed):

0.0025%	per 1% change in relative humidity

Permanent Dimensional Changes

Processing Dimensional Change:

-0.03 to +0.02%	shrinkage to swell


Aging Shrinkage of Processed Film:

0.06%	1 week at (49°C) 120°F , 20% RH

0.03%	1 year at (25.5°C) 78°F , 60% RH

SIZE DATA AND ORDERING

INFORMATION

Information on available sizes and minimum order quantities of this film is available on the web at www.kodak.com/go/aerial. You can also write or call:

Aerial Imaging

Eastman Kodak Company 343 State Street

Rochester, New York 14650-0505 (585) 724-4688

Toll-free in the US: (877) 909-4280

Note: The Kodak materials described in this publication used with KODAK AEROCHROME III MS Film 2427 are available from those dealers normally supplying Kodak products. Other materials may be used, but equivalent results may not be obtained.

KODAK AEROCHROME III MS Film 2427 • AS-2569