Patent ID: 6498901
Filing Date: 2002-12-24
Classification: G03B,H05B

Abstract:
A flash photography system including a camera body and at least one flash device, comprising:a first photometering device including a multi-segment photometering sensor having a plurality of zone sensors for measuring an amount of light of a pre-flash emission, emitted by said at least one flash device before a main flash emission, respectively; a second photometering device including a single-segment direct photometering sensor for measuring an amount of light of said main flash emission emitted by said at least one flash device; a weighting device which assigns a weighting factor to an output of each of said plurality of zone sensors of said multi-segment photometering sensor; a calculation device which calculates a correction value based on each photometering value and said weighting factor of each of said plurality of zone sensors of said first photometering device, wherein an appropriate receiving light amount of said second photometering device is calculated based on said correction value; and a controller which terminates said main flash emission of said at least one flash device immediately after the light amount measured by said second photometering device reaches said appropriate receiving light amount.