| 摘要 |
<p>Large-format film for view cameras is changed automatically without sacrificing swing-and-tilt capability. The holder accepts a supply stack (44) of unexposed film and positions the film, one sheet at a time, at the focal plane (102) for exposure. A series of rollers (28, 32, 36) feeds the unexposed film from the supply stack to the focal plane, and feeds the exposed film from the focal plane to a receiving position (22). The same rollers, always operating in just one rotational direction, feed both the unexposed and the exposed film, in opposite translational directions, along opposite sides of each roller. Certain of the rollers do both these tasks simultaneoulsy. The holder may take the form of an interchangeable accessory for existing cameras.</p> |
