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Film cassette with automatic film speed register - has scanner with control device activated by camera handling and providing mechanical load release
Film cassette with automatic film speed register - has scanner with control device activated by camera handling and providing mechanical load release
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机译:带有自动胶卷速度寄存器的胶卷暗盒-带有控制装置的扫描仪,通过照相机操作来激活并释放机械负载
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摘要
a rib (2) on the cassette indicates the film speed. When the cassette is inserted in the camera, this rib positions a lever (6, 7). Closing the camera back, or cocking the shutter, or transporting the film, causes a second lever (10) to lift the first (6) slightly away from the rib (2), so that the cassette lies free in the camera. A cassette containing a film of a different speed has no rib, so that the first lever rests further down (spring 8), and the second remains out of engagement with it (at 10). Then a stop (16) is no longer placed in the path of the rod (18) that brings the exposure-correcting element into operation.
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