IMAGING DEVICE

摘要

An imaging device in which the amount of flash can be accurately determined from preflash of a flashtube even if the imaging element comprises pixels which are exposed to light and read at different timings. Before and at the preflash of a flashtube (21), exposure of all the pixels of an imaging element (13) is started at a time, respectively, to capture images before and at the preflash. A detecting circuit (17) determines the detection values before and at the preflash. A computing circuit (18) subtracts the detection value before the preflash from that at the preflash, computes the difference detection value of only the preflash excludingthe effect of the extraneous light, and computes the amount of flash from the difference detection value.