| 摘要 |
<p>PURPOSE:To photograph smoothly with the automatic dimming operation in the rear light state by measuring once a display aperture value and not allowing it to follow up variance of the object luminance. CONSTITUTION:A display aperture value setting means 7 is operated; and if the photometric value at this time is 2.8msec, the first display aperture value signal for displaying F22 is outputted and is stored as the second display aperture value signal, and comparison due to a comparing means 11 results in coincidence, and the alarm operation is stopped. If the photometric value due to the photometric operation of a photometric timing setting means 3 is 2.9msec, the means 7 is operated, and the first display aperture value signal for displaying F22 is outputted, and the alarm operation is not performed. Consequently, it is unnecessary to set the aperture value again by the varied value of the photometric value due to slight variance of the object luminance after the aperture value to be set to a camera is set once, and aperture setting is performed smoothly.</p> |
