| 摘要 |
<p>A control device for a camera (21) with means for the electric control of the shutter of the camera and for adjusting and indicating the exposure time and the aperture, is connected to an electronic calculator (22). This calculator comprises logic circuits to associate to lighting parameters coded digital values. In a preferred embodiment, the selected aperture value is coded and entered, by means of the control device (21) of the camera, into the electronic calculator. The exposure time corresponding to the selected aperture and to other lighting parameters is calculated by the calculator and automatically applied to the shutter. The lighting parameter responding to the luminosity of the object to be photographed may be input manually or by means of a photoelectric cell (23) into the electronic calculator. An electronic flash (24) may be connected to the calculator to be controlled by the output signal of the calculator. If necessary, the exposure calculator determines after a single flash test the number of flashes required for an exposure. </p> |
