| 摘要 |
<p>PURPOSE:To enable automatic dimming which keeps the level of reflected light equal without reference to the attachment of an adapter, by selecting a lighting type dimming level correction part when the adapter is attached. CONSTITUTION:According to the attachment of a wide-angle adapter or telephotographic adapter 24, switches S1 and S2 are controlled to turn on-off, and the quantity of flashing of xenon lamp 10 varies to correct the lighting dimming level. Consequently, the reflected light level is constant without reference to the attachment of the adapter and lighting type automatic dimming is carried out easily and securely without correcting operation. Similarly, the same result is obtained by selectively changing light current integrating capacitors, gains of the light current integrating network, positions of the photodetection quantity attenuation plate, addition and subtraction correction values in arithmetic, other flashing bodies, etc.</p> |
