| 摘要 |
A flash photography system arranged to measure ambient light illumination and make a preliminary flash emission for measuring the contribution of the flash light to the scene illumination. The amount of main flash emission is predetermined on the basis of measured ambient light and preliminary flash illumination. The flash device has an intensity feedback control via light sensors (49,51) mounted near the strobe xenon lamp (Xe,44) arranged to produce a flat emission profile (emission of constant intensity over a predetermined time) of adjustable intensity and duration. The camera has a plurality of light receiving means for measuring scene illumination distribution, automatic focus detection in a plurality of regions of the viewing field, means for detecting the visual line (sight line) of the operator in the view finder, means for selecting on which regions of the viewing field exposure calculations should be based and means for detecting a flicker component in ambient light. <IMAGE> |
