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SOME CONSIDERATIONS IN THE DESIGN OF SOUNDPROOF CAMERA HOUSINGS
L. E. CLARK*
The fundamental requirement of a silent cover — "bungalow," or "blimp," as it is colloquially called — is that the device shall effectually keep the camera noise from getting out on the set. In general, it can be said that any device which lets camera noise be heard by a person of normal hearing standing more than four feet from the camera in an absolutely silent room, is not sufficiently quiet to cover all conditions. This is the fundamental consideration; all others, while they may be of major importance, are secondary to this. Some of the other requirements are:
(1) Accessibility of the Camera. — Doors should be provided which are large enough and in such places that they readily permit the operator to get at all parts of his camera. For a Mitchell camera, for example, it is imperative that the operator be able to get at the back, the left side, and the front of his camera. There are certain adjustments which he has to make on the right side of his camera as well, but if a large door is provided in the back, it will be sufficient to cover this need. These doors should be readily opened and when fastened should make solid and airtight joints.
(2) Freedom from Changes in the Camera. — The successful photography of a feature production is in itself so much of a strain on a cameraman that he is in no condition to have imposed upon him added difficulties caused by changes in his camera necessitated by the blimp. For example, the relative location of finder and camera aperture should be maintained as at present. Furthermore, his elaborate mat box and filter holders should be kept as they are now so that he will be able to get any photographic effects he desires. Plenty of room around these should be provided for a man to work and make adjustments. The mounting of the camera in the blimp should be the same as at present, and the blimp
* Pathe Studios, Inc., Culver City, California. (Read before the Society at Washington.)
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