A solid-state imaging apparatus including a pixel section having pixels arranged into rows and columns each pixel containing at least a photoelectric conversion device for converting an incident light into signal electric charges, a transfer device for transferring the signal electric charges generated at the photoelectric conversion device, and an amplification device for amplifying the transferred signal electric charges; constant current supplies each connected to respective one of the vertical signal lines; an amplification section for amplifying an image signal; a clip section for clipping the vertical signal line so that it does not fall below a predetermined voltage in a read period for outputting the signal electric charges generated at the photoelectric conversion device onto the vertical signal line; and a control section for changing a clip level of the clip section in accordance with setting of an amplification factor at the amplification section.