The American annual of photography . 235 The illustration herewith shows the construction very clear-ly and, as can be seen, the marks with their correspondingfigures are so arranged that the first four are a quarter of aninch apart, while the remainder are placed at intervals of oneinch. With the camera at the extreme left of the frame, as onelooks at it from the back of the camera, there is an allowableshift of seven and one-half inches to the other end where theright side edge of the slide comes immediately over the num-ber showing the proper position for objects situated at a dis-tance of
The American annual of photography . 235 The illustration herewith shows the construction very clear-ly and, as can be seen, the marks with their correspondingfigures are so arranged that the first four are a quarter of aninch apart, while the remainder are placed at intervals of oneinch. With the camera at the extreme left of the frame, as onelooks at it from the back of the camera, there is an allowableshift of seven and one-half inches to the other end where theright side edge of the slide comes immediately over the num-ber showing the proper position for objects situated at a dis-tance of three hundred and fifty feet, or more. The other numbers indicate the slide positions for theirrespective distances in the same GORDON FORSYTH. 236
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1919
