File:The American annual of photography (1914) (14780000232).jpg

Identifier: americanannualof28newy (find matches)
Title: The American annual of photography
Year: 1914 (1910s)
Authors:
Subjects: Photography
Publisher: New York : Tennant and Ward
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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rough carefully, itwill be noted that the transparent portions come only wherelight of the color of that part of the object corresponds tothe color of the window of the screen through which itoriginally passed, thus giving us a representation of the objectin its natural color. In actual practice, of course, the rectangles of the Mosaicscreen described would be too large to take advantage of themerging defect of the eye in observing small objects pre-viously referred to, by means of which color combinationswould be arrived at; they should not exceed one hundredthof an inch on a side. Also it would require considerable experience to be ableto select the proper aniline dyes and yellow filter. Finally, the panchromatic emulsion would have to be spe-cial, so that the procedure above outlined is not offered asa means of obtaining color transparencies, but solely to illus-trate the points brought out. All the three processes herein described involve the ele-ments above referred to, viz., 122
Text Appearing After Image:
CANON OF THE RIO DE LAS ANIMAS PERDIDAS.Southwestern Colorado. GEORGE L. BEAM. A Mosaic color screen, A special panchromatic emulsion. A special yellow filter. They differ somewhat from the above description in thatthe Paget and Dufay employ a geometric recurring pattern ofMosaic screen (Figures i and 2), while the Lumiere is ofan irregular non-recurring pattern (Figure 3).

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