Solid-state image capturing device, method of driving solid-state image capturing device, and image capturing apparatus

A solid-state image capturing device includes: a pixel array unit including plural pixels each converting light selectivelyincident through a mechanical shutter into charges to be stored in a storage portion and having an overflow path through which charges exceeding a saturation charge amount are discharged;and a driving unit starting an exposure by simultaneously resetting all pixels of the pixel array unit, maintaining the overflow path in an opened state during the exposure period, and closing the overflow path during a period while signals are read from the pixels after ending the exposure by closing the mechanical shutter.