| 摘要 |
<p>PURPOSE:To execute continuous flash photographing over a wide range, by switching an aperture value controlling characteristic based on distance information in accordance with switching to a continuous photographing mode by continuous motor-driven winding, and shortening a recycle time. CONSTITUTION:When a switch 46 is switched so that a contact 46a is connected to a contact 46c, a regular photographing mode is converted to a continuous photographing mode by continuous motor-driven winding, and through a distance information generating potentiometer, an output of a distance information buffer amplifier 37 whose reference voltage is varied in accordance with a distance becomes a value which is difference from a case of the regular photographing mode. Simultaneously, an input current to an aperture controlling circuit of a joint A through an operational amplifier 45 which sets the output of the amplifier 37 to an input, also becomes a value different from a case of the regular photographing mode. A recycle time is shortened by switching an aperture value characteristic based on distance information in accordance with switching to this photographing mode, and satisfactory continuous flash photographing can be executed over a wide range from a short distance to a long distance.</p> |
