The American annual of photography (1911) (14596816789)

Identifier: americanannualof1911newy (find matches)
Title: The American annual of photography
Year: 1911 (1910s)
Authors:
Subjects: Photography
Publisher: New York : Tennant and Ward
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University



Text Appearing Before Image:
object board standard andback of the camera, so that object and plate may be kept per-fectly parallel. (Fig. 2). It aids in sharp focusing if a Tew cover glasses are fastenedby means of Canada Balsam, heated, on the ground glass sideof the ground glass. Cut-outs made of light wood (stained black), heavy paperor light cardboard, allowing two or more exposures to be madeon one plate, are useful. They are placed in front of the groundglass at back of camera. 293 THE CAMERA^ A transmitted light holder, consisting of a base working onrack and pinion and moved by long arm from back of camera,by the operator the same as the object board, and two uprightposts with clamps to hold the document, is necessary if trans-mitted light photographs are to be made. THE CAMERA STAND. It is advisable to have a camera stand that will permit thecamera being used at any angle between the usual horizontaland vertical; and for transmitted light it may be necessary toincline the stand to an angle of 45 degrees.
Text Appearing After Image:
Fi? 2.Document camera showing adjustable and detachable object board, tilting and adjusting stand, e.c. If much traveling is to be* done with the apparatus, thestand and camera should be of the take-apart kind for con-venience and safety. The camera bed should be marked with indicators, locatingpositions of object, lens and back of camera for different en-largements made by each lense used. (Fig. 2). ^This instrument and the stand were designed by Mr. Albert S. Osborn, NewYork, Examiner and Photographer of Documents. 294