Imaging device capable of simultaneously capturing of a motion image and a static image and imaging method

An imaging device comprising:

• an imaging sensor having a photoelectric converter that photoelectrically converts a light flux from an object and accumulates generated charges and a first capacitor and a second capacitor that hold the charges transferred from the photoelectric converter;
• an optics that guides the light flux from the object to the imaging sensor;
• and
• a controller that reads out a pixel signal that is based on an amount of charges held in one of the first capacitor and the second capacitor, and that transfers the charges to the other of the first capacitor and the second capacitor and holds the charges,
• wherein the controller sets capturing conditions including accumulation periods for a motion image capturing and a static image capturing, and
• wherein the controller selects a combination of the first capacitor and the second capacitor used for a motion image capturing and a static image capturing in accordance with the capturing conditions and a brightness of the object.