Some Relationships between the Physical Properties and the Behavior of Motion Picture Film
It is impossible to attain absolute dimensional stability of an image on ordinary photographic films. There will be slight, but nevertheless measurable, distortions of the image owing to the loss of volatile materials and to the expansion or contraction which accompanies changes in moisture content. Likewise, a small amount of image distortion occurs frequently in printing. — These distortions are usually quite small and can often be neglected. In certain specialized fields, however, they cannot be overlooked. In one part of this paper the various sources of these image distortions are discussed individually and suggestions are offered as to the manner in which these distortions may be minimized. — Another part of the paper is devoted to a discussion of the drying of motion picture film and the difficulties frequently encountered when the film is reeled with the emulsion layer in equilibrium and the base in partial equilibrium with the air in the drying cabinet.
- Print ISSN
- 0097-5834
- Published
- 1945-09
- Content type
- Original Research
- DOI
- 10.5594/J12839