To improve insufficient light intensity when performing an electronic front curtain imaging after performing a shift movement in a case where a TS lens is mounted on an image pickup device including an electronic front curtain shutter.
This image pickup apparatus includes: shift amount component calculation means that determine a shift direction by rotating, by revolving means, at least a part of a photographic lens about an optical axis and calculates a shift amount component H in a shutter travel direction out of the shift amount of shift means; calculation means of an emission pupil distance P for calculating a corrected emission pupil distance P based on photographic lens information and the shift amount component H; and electronic front curtain scan calculation means for calculating a scanning pattern of an electronic front curtain scan based on the calculated corrected emission pupil distance P.