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Gustav Selle
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Details Of Cameras Including Film Mechanisms
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Abstract
11,133. Selle, G. May 4. Dark slides; cameras.-Dark slides for threecolour photography are made to contain three plates g each with a light-filter f. The dark slide moves in a guide b attached to the camera case A, either permanently, as shown, or by a vertical slide. In the former case a shutter e is provided for each plate, as shown ; in the latter case, the slide b is made to protect the plates in transit, and a single shutter opposite the aperture in the camera case will suffice.
GB189711133D1897-05-041897-05-04Improvements in Photographic Dark Backs for Successive Exposures for the Purposes of Color Photography.
ExpiredGB189711133A
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