In order to halt smear sweep-out in a case where the effects of smear charge are considered minor, it is determined whether the shutter is a high-speed shutter when a shutter-release button is pressed. If the shutter is not the high-speed shutter, a CCD is exposed and signal charge accumulates in the photodiodes of the CCD. Smear charge is swept out before the signal charge is shifted from the photodiodes to vertical transfer lines. The signal charge is thenceforth transferred to the vertical transfer lines and a video signal is output from the CCD. In the case of the high-speed shutter, smear sweep-out is halted and charge is shifted from the photodiodes to the vertical transfer lines.