Image pickup and focus detection apparatus, control method, and storage medium

摘要

An image pickup apparatus capable of achieving in-focus photographing with a reduced time lag. A system controller of the image pickup apparatus detects an in-focus state of image while moving a focus lens in an optical axis direction, and detects a state of a photographing scene at image acquisition. When detecting a change in photographing scene, the system controller moves the focus lens to a movement start position. When detecting that a photographing scene has been decided by a photographer, the controller detects an in-focus state while moving the focus lens.

主权项

1. An image pickup apparatus comprising:
an image pickup unit adapted to acquire an image by photoelectric conversion of an object image formed by a focus lens; a focus detection unit adapted to detect an in-focus state of an image while moving the focus lens; and an object detection unit adapted to detect, from an image, an object to be focused, wherein said focus detection unit is adapted to move the focus lens to a predetermined position in a case that a change of data between data from a precedingly acquired image and data from the image is detected, wherein said focus detection unit is adapted to detect an in-focus state while moving the focus lens in a case that the change of data is not detected, and wherein in-focus state detection performed in a case that the change is not detected is carried out after the focus lens is moved to a detected position corresponding to a detected object in a case that the object has been detected by said object detection unit, whereas the in-focus state detection is carried out from the position in a case that an object has not been detected by said object detection unit.