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 height of the camera should not be overlooked. If it is placed too high the lines of the floor will convey the impression of a slope. In a room of ordinary size the lens should not be more than forty inches from the floor.
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ISBN-13
978-0-243-81939-3 (9780243819393)
Schweitzer Klassifikation
