In a control circuit for controlling a solid-state image pickup device, two sorts of image data are read out separately with differing sensitivities. A timing generator control in a digital camera controls a timing signal generator to the interlace scanning or to all-pixel scanning, and outputs a timing signal, consistent with this control, to the driver. The driver outputs a driving signal, consistent with the timing signal, to the solid-state image pickup device included in an image pickup unit to read out signal charges. In particular, in interlace scanning, readout of signal charges of main pixels of the image pickup device is separated from that of subsidiary pixels of the device.