| 摘要 |
<p>PURPOSE:To eliminate the need for keeping a power source switch closed in order to hold the program changed to a desired value and prevent the consumption of a battery by using a mechanical dial as a means of varying the relations between shutter speeds and aperture values. CONSTITUTION:If an exposure value determining means that determines shutter speeds and aperture values linearly according to the output of an EV value determining means and a program constant setting dial 213 are provided and if the turning of the dial 213 is stopped when the combination of TV and AV that the photographer desires is obtained, an amplifier for generating aperture value signal and an amplifier for generating shutter speed signal continue to generate the signals shifted according to the amount of turning of the dial 213. Thereupon, when the shutter release button is depressed further, the diaphragm aperture of the taking lens is controlled and the shutter speed is controlled, thus the exposure controlling is accomplished at the correct exposure.</p> |
