A
solid state imaging device includes: multiple unit pixels including a photoelectric converter generating electrical charge in accordance with incident light quantity and accumulating the charge, a first transfer gate transferring the accumulated charge, a charge holding region holding the transferred charge, a second transfer gate transferring the held charge, and a
floating diffusion region converting the transferred charge into
voltage; an intermediate charge transfer unit transferring, to the charge holding region, a charge exceeding a predetermined charge amount as a first
signal charge; and a pixel driving unit setting the first transfer gate to a non-conducting state, set the second transfer gate to a conducting state, transfer the first
signal charge to the
floating diffusion region, set the second transfer gate to a non-conducting state, set the first transfer gate to a conducting state, and transfer the accumulated charge to the charge holding region as a second
signal charge.