RECIPROCITY TESTING OF KODAK FILM TYPE SO-289 MULTISPECTRAL INFRARED AERIAL FILM

摘要

Kodak multispectral infrared aerial film type SO-289 was tested for reciprocity characteristics because of the variance between the I-B sensitometer exposure times (8 seconds and 4 seconds) and the camera exposure time (1/500 second) used on ASTP project MA-007, Stratospheric Aerosol Measurement.nTest exposures were made on the flight emulsion using a Mead Star System sensitometer the films were processed to ASTP control standards, the resulting densities read and reciprocity data calculated. It was found that less exposure was required to produce a typical density (1.3) at 1/500 second exposure time than at an 8 second exposure time. This exposure factor was 2.8.