The present invention is intended to display information of a focal length to be corrected or a focus position of a lens on a screen so that the user easily set a proper correction value even when the correction value of the in-focus position of the phase difference AF is different depending on the focal length or the focus position. A display apparatus of an image-pickup apparatus includes a lens information display 510, 531 configured to display lens information including at least one of information relating to a focal length of a lens unit and information relating to a focus position, a scale 503 that represents a correction value for correcting an in-focus position of a phase difference AF, and an indicator 520a-c, 530a-c that is used for setting the correction value corresponding to at least one of the focal length and the focus position.