The invention provides a camera and a control method thereof. The camera is capable of dynamic image photography and through image display at least one of the parties has a shooting part, which will be formed as the camera is converted to electrical signals; the subject brightness acquisition section acquires the subject brightness; exposure calculation, according to the subject brightness acquisition part is obtained subject brightness operation, the shutter speed and aperture shutter; Department of the Ministry of operation, according to the exposure of the output control camera shutter speed, accumulation time of the optical signal; and the aperture control department, according to the exposure calculation of the output aperture value controlling the aperture of the diaphragm aperture value, which limits the amount of light from the camera. The incident, according to the exposure calculation associated with the last exposure subject obtain brightness of the output brightness information, aperture of the aperture, shutter, shutter speed, calculation of the last exposure The deviation between the appropriate exposure and the aperture value of the aperture at the next exposure based on the deviation calculation.
【技术实现步骤摘要】
【技术保护点】
１．一种照相机，其能够进行动态图像摄影和实时取景显示中的至少一方，该照相机具有：摄像部，其将由摄影镜头形成的像转换为电信号；被摄体亮度获取部，其获取被摄体亮度；曝光运算部，其根据所述被摄体亮度获取部获得的所述被摄体亮度，运算快门速度和光圈值；快门部，其根据所述曝光运算部输出的所述快门速度，控制所述摄像部蓄积光信号的时间；以及光圈控制部，其根据所述曝光运算部输出的所述光圈值，控制光圈部的光圈值，该光圈部限制从所述摄影镜头入射的光量，其中，所述曝光运算部根据与上次曝光相关的所述被摄体亮度获取部输出的亮度信息、所述光圈部的所述光圈值、所述快门部的所述快门速度，计算上次曝光量与适当曝光量之间的偏差，根据所述偏差运算下次曝光时的所述光圈部的光圈值。
【技术特征摘要】
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【专利技术属性】
技术研发人员：工藤泰则，
申请(专利权)人：奥林巴斯映像株式会社，
类型：发明
国别省市：JP
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