File:The American annual of photography (1912) (14765734025).jpg

Identifier: americanannualof1912newy (find matches)
Title: The American annual of photography
Year: 1912 (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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argement. Few photographers, if any, would be candid enough toadmit that they made bad negatives; therefore, the numberof negatives that demand reproduction by dry plates is verylimited and the carbon process should be employed by thoseseeking the finest results, for it is peculiarly suitable formaking transparencies intended either for the purpose ofwindow decoration, for projection in the optical lantern, orfor the production of enlarged negatives. In the last instance they have the special advantages ofgiving a grainless film; Indian ink in the finest possible stateof division, being the color used in the manufacture ofTransparency tissue; and of giving a correct rendering ofthe complete range of gradation existing in the negative, asthere is no halation or reversal of the image possible, whichmay occur in making transparencies on plates containing silversalts. For lantern slides varied colors may be employed accordingto the subject represented and the effect desired; dark blue, 40
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o o w QhJO O mb I—I12;w> bright blue and sea green are most effective colors, but Italiangreen is disappointing in the lantern, losing its distinctivegreen tone. Ruby brown, standard brown, and terra cottaare all pleasing warm colors, but the distinction between themis less when viewed on the screen than when they are usedfor paper prints, the effect of color being diluted by theamount and nature of the light passing through the lantern. When transparencies are used for window decoration theymust be backed with ground glass to diffuse the light and mayfrequently be usefully and decoratively employed to block outunsightly views from a staircase or other window. In the coin room of the British Museum a series oftransparencies produced by The Autotype Company, andprinted from enlarged negatives of ancient coins are exhibitedto illustrate the degree of perfection obtained in coins twothousand years ago, and serve the secondary purpose of hidingthe expanse of flat copper roofing. To o

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