Image capturing apparatus and image capturing method

An image capturing apparatus includes: an image acquisition unit operable to acquire a plurality of captured images at least relating to the focus control among images captured by an image capturing unit; an image comparison unit operable to compare focus states of focus positions of the plurality of captured images acquired by the image acquisition unit; an out-of-focus determination unit operable to determine which captured images are not in focus, the captured images being included in the plurality of captured images compared by the image comparison unit; and an error display signal generating unit operable to generate a signal for displaying an error region on the display unit for the captured image determined to be out-of-focus by the out-of-focus determination unit.