| 摘要 |
The accessory for a miniature cine camera is used to allow titles to be photographed in the foreground, super-imposed on a given background, using a title frame (6) for transparent title carriers (8,9) and a close-up lens for focusing the titles image. - A retro-focusing system is used as the close-up lens, comprising a negative lens element (4) and a positive lens element (3). The distance between the two lens elements (3,4) and their respective focal lengths provide an equivalent compound lens with a positive focal length, with its main plane behind the positive lens element (3) adjacent the plane of the camera objective.
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