Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The grooved or notched track-frame at the bottom, on which the front of the box travels, is usually hinged back of the center of its length, so that, when the ends are brought close together by the telescoping of the bel lows, the longest part of this frame or bed may be folded up against the front of the box, making the whole camera compact for carrying, the folding up has nothing to do with the operation of the camera. Roughly speaking, this is the whole of a camera box, except two other features of its construction, which will be noted further on.
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ISBN-13
978-0-243-77858-4 (9780243778584)
Schweitzer Klassifikation
