Directional Effects in Continuous Film Processing

J. Crabtree

Continuous motion picture film developing machines set up a unidirectional current of developer as a consequence of the motion of the film unless vigorous measures are adapted to counteract it. This current is shown to cause distortions of the H & D characteristics of the photographic material, when the usual type of sensitometer strip is used for control of the development. The effect of the geometry of the sensitometer strip on the extent of “direction effect” is discussed.

Print ISSN
Published
1932-02
Content type
Original Research
DOI
10.5594/J05559