Raylo
Description
“Raylo was a material developed by Hiram Codd Joseph Deeks (1880−1952) of the American Raylo Corporation, New York. It was introduced in 1922 for a printing service for users of the Raylo Camera, a one-shot camera that made three negatives through filter screens on a single plate measuring 1 3⁄4 × 3 1⁄4 inches (Fig. 3.4).10 The printing material, called Raylo Color Sheet, consisted of three patches of gelatin colored magenta, blue, and yellow laid side by side on a single strip of celluloid. Printing was done by projection or contact through the sheet’s base after it had been sensitized with dichromates. The colored impressions were developed in warm water to eliminate unhardened gelatin. Once dry, the colored reliefs were placed on a Raylo combining board (Fig. 3.5). A sheet of moistened paper was first pressed against the yellow positive. When it was dry, the celluloid was stripped away, leaving a yellow impression on the sheet of paper. The operation was repeated for the magenta and blue impressions, one on top of the other and in register (Gannon 1923) (Fig. 3.6). All prints were made in the Raylo laboratories and were offered in two sizes: 2 1⁄4 × 3 1⁄4 in. and 5 × 7 in. Although they were of good quality, Raylo prints were produced only until the 1930s, probably due to the high cost of the camera and the reduced size of the negatives and prints.11”
(Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, on p. 86.)
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Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 87.
Secondary Sources
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, on p. 86. View Quote
