Patent ID: 7589782

Claim:
An imaging apparatus comprising: an exposure period setup part configured to generate a timing signal which prescribes an exposure period of an image pick up device; a control part for the image pickup device configured to control an operation of said image pick up device in synchronization with said timing signal of the exposure period; a timing part configured to measure an elapsed time from the timing signal of the exposure period; and an imaging apparatus control part configured to control said control part for the image pick up device and said exposure period setup part, wherein said timing part measures the elapsed time from the exposure period timing signal right before a beginning of an exposure setup operation to the beginning of the exposure setup operation by said exposure period setup part, and when a time from the beginning of the exposure setup operation to a generation of a next exposure period timing signal for a regular exposure period, the time being calculated by using the measured elapsed time, is equal to or greater than a predetermined time, said imaging apparatus control part shortens the time till the generation of the next exposure period timing signal from the regular exposure period, and said exposure setup operation includes setting a number of electric shutter pulses so as to adjust an exposure time.