| 摘要 |
PURPOSE:To carry out high-speed continuous shooting by performing the 1st shooting under automatic exposure control based upon full-open metering when a single-lens reflex camera is placed in continuous shooting mode, and then performing stop-down metering based upon an aperture set in the 1st shooting for successive shooting. CONSTITUTION:When a switch (SW) 10 is turned on to set continuous shooting mode, an FFDF1 is released from being reset. In the 1st metering, an SW5 is turned off, the aperture is opened by a stepping motor driving circuit through an inverter, and subject brightness information obtained by an up/down counter CN1 is inputted to a subtracter SUB. The subtracter SUB performs arithmetic using aperture information set by SWAs 1-3 to obtain shutter speed information. An SW5 is closed right before releasing operation to stop down the aperture as prescribed, carrying out shutter control. On the 1st shooting, an SW11 is turned off to trigger the FFDF1 and the input to the subtracter SUB falls to a low level. Further, the aperture is fixed through an AND gate A6. |
