| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to exactly control the light emission quantity of a stroboscope in a low-luminance region according to subject luminance by controlling the light quantity of the stroboscope by a combination of the integrated light quantity set in the region where the measured subject luminance is included and the diaphragm aperture value at the time of stroboscope light emission. SOLUTION: The stroboscope light quantity control is executed by setting of the integrated light quantity by both of reference voltage Vref and a gain signal G. The light emission start timing is determined by a light emission control signal T (FT). This light emission control signal T (FT) has the time widthΔTs that a CPU 2 reads out of a table memory 8 in accordance with the measured subject luminance LV and the trigger signal FT is outputted at the timing of the clocking completion of the time widthΔTs, by which the stroboscopic light emission is executed. The stroboscope light quantity to a film is larger as the shutter aperture diameter when the stroboscope emits light is larger under the same reference voltage Vref at the time of, for example, triangular exposure.
|
