Imaging apparatus and imaging method

An imaging method using a solid-state imaging device having pixels which include at least one pair of phase-difference pixels, and which are two-dimensionally arranged, wherein the method comprises:

• a position changing step of changing a relative position of the imaging optical system and the solid-state imaging device in a direction perpendicular to an optical axis of the imaging optical system;
• a provisional-imaging controlling step of causing the solid-state imaging device to perform provisional imaging a plurality of times while changing the relative position;
• a relative position determining step of determining one of the relative positions that are obtained when the plurality of provisional imagings are performed, as a relative position in regular imaging, on the basis of, among a plurality of captured image signals which are output from the solid-state imaging device in the plurality of provisional imagings, output signals which correspond to a part or all of the pairs included in the solid-state imaging device, and which are obtained from pixels in areas including the pairs;
• and
• a regular-imaging controlling step of causing the solid-state imaging device to perform regular imaging in the relative position that is determined in the relative position determining.