| 摘要 |
A camera signal system for portrait taking in which a sensory signal alerts animate subjects of photography, such as group-portraiture subjects, at a predeterminable time before exposure, usually from one to three seconds. The signal is preferably both audible, as a "beep", and visual, as a "funny face" which appears when lighted from behind, for relaxing and at the same time immobilizing the subjects. Both human-timed and adjustable-time and non-adjustable time automatically-timed embodiments are provided in clip-on, clamp-on, glue-on, screw-on, fabric attached and built-in versions, adapted for employment with a variety of cameras.
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