| 摘要 |
PURPOSE:To take a photograph under the quantitative control over the contrast by providing 2 or more photodetectors for executing photometry on the plural parts of a photographing picture, and controlling the contrast of the photometric parts to attain a prescribed value from the photodetecting quantities at the time of light emission and non-light emission of an auxiliary light source. CONSTITUTION:Photodetectors PD1, PD2 execute photometry of different parts on the respective photographing pictures. A light emitting part FL1 for spare light emission receives a closing signal of a switch (S) 6 of a camera side and emits a flash. When the S 6 is closed, the light emitting part FL1 starts light emission, also a timer TI1 is operated, output currents of the elements PD1, PD2 are integrated by capacitors C11, 12, and the integration is stopped after a constant interval of time. Voltage in case of said light emission and non-light emission is A/D-converted 8 through a multiplexer 7, and is applied to a demultiplexer 9. To a block 14, a block 26 and a block 73, Tvc of said reset time, Tvs of an exposure time and a contrast data DELTA cs are provided, respectively, and the quantity of light between photometric parts by a main light emitting part FL2 can be controlled to a prescribed ratio. |
