File:The American annual of photography (1912) (14765427172).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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r the back of the plateand trimmed off evenly at the front edge of the glass. Replacethe ornamental casing of light brass, which is sometimes used,and press the whole into the case. Daguerreotype plates vary in size, from the 6^ by 8^whole plate to the half and quarter plate and on down tovery small sizes. The size most commonly seen is the sixth,S/i by 2^, of which the part not covered by the mat, whenenlarged about 2^ times (lineal), gives a picture of suitablesize for a 6^ by 8>^ dry plate. The copy may be of the same size as the original or smalleror larger, according to taste or convenience. Some enlarge-ment is usually preferable, the amount of which must dependupon the extension of which the camera is capable. Mostcameras do not give enough extension for even a full-sizedimage, with the lenses commonly used with them. Some giveenough for full size or a little more, while others are madeespecially with long extension. The amateur may increase the capacity of his camera, in 62
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CHILD STUDY. _:j WILLIAM GILL. this respect, by adapting to it a lens of shorter focus thanthat for which the camera is intended. In the absence of alens board fitting the camera with the smaller lens, the planadopted by the writer is as follows: Take off the lens ringfrom the lens board of a 6^ by 8^ camera and secure tothis board the smaller board of a short focus lens, with a ringof cloth between them to exclude light. To effect this tackthree little strips of light brass or tin to the back of the largerboard, around the opening and extending slightly over its edge.

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