| 摘要 |
PURPOSE:To obtain quite obvious photometric state and to attain suitable photometry, by generating a marker pulse representing the photometric region, and displaying the region on an electronic finder or a monitor color cathode ray tube based on the marker pulse. CONSTITUTION:A light from an objective M is applied to an image pickup device 3 via a lens 1 and aperture blades 2, the light is converted into an electric signal at the device 3 and the signal is picked up at a video signal output terminal 20 via an amplifier 4 and a video processing circuit. Another output signal from a video processing circuit 5 is applied to a video marker mixing circuit 19, where the signal is mixed with a marker signal outputted from a marker pulse mixing circuit 17 through a processing circuit 18. This mixed output is applied to an electronic finder output circuit 6, where a synchronizing signal from a synchronizing signal generating circuit 8 is mixed and the result is an output signal driving an electronic finder or a monitor cathode ray tube and outputted from an output terminal 21. |
