| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the noise, even if the ISO sensitivity of camera is enhanced. <P>SOLUTION: A reflected light amount from an object is detected, an aperture value and a shutter speed needed during photographing are computed and decided (S401); and when it is determined that exposure amount is not sufficient to cause a dark image, computation for enhancing the ISO sensitivity is performed (S402). An ISO sensitivity value and a receiving request command of a previously stored noise resistance data are transmitted to a lens microcomputer. A mirror-up operation is started (S404) in a preparation for exposure starting (S403), a shutter is opened in preparation for exposure starting (S405), camera status information is transmitted to the lens microcomputer, and exposure to an imaging element is started (S406). When exposure time is finished, camera status information is stored in a memory (S407), the shutter is closed (S408), a mirror-down operation is performed, and a series of sequences is finished (S409 and S410). <P>COPYRIGHT: (C)2009,JPO&INPIT |
