Patent ID: 8724011

Claim:
An image pickup apparatus comprising: an image capturing part configured to photoelectrically convert an object image formed by an image pickup optical system to produce an image pickup signal; a first detector configured to detect a first in-focus position by a phase difference detection method using paired image signals produced by photoelectric conversion of the object image; a controller configured to control position of a focus lens included in the image pickup optical system on a basis of the first in-focus position to perform focusing; a second detector configured to detect a second in-focus position by a contrast detection method using the image pickup signal; a calculating part configured to calculate a correction value for correcting the first in-focus position in image capturing on a basis of difference between the first in-focus position and the second in-focus position; and a determining part configured to determine a level of reliability of the first in-focus position, using information on the paired image signals, wherein the controller is configured to calculate the correction value when the level of reliability is a first level, and to restrict the calculation of the correction value when the level of reliability is a second level lower than the first level.