ZelacolorR, A New Method of Color Separation Without the Use of Intermediate Transparencies

Essentially, the Zelacolor method utilizes a patented 70 mm photographic camera that is compact and completely portable. The unique use of 70 mm film may be considered as an entirely new development with regard to commercial production techniques. The Zelacolor method exposes the cyan, magenta, yellow and black separation images onto a single strip of 70 mm continuous tone film. Color correction is made possible by a cassette masking system that enables the operator to make one or more masks for each set of separations. Any type and size of reflective copy or three-dimensional object may be used as the subject to be color separated directly by the camera, which is called the Zelacolor Universal Camera. This paper will describe the mechanical design of the camera as well as the functional operation of the complete system.