IMAGE PICKUP APPARATUS CAPABLE OF CHANGING DRIVE MODE AND IMAGE SIGNAL CONTROL METHOD

摘要

An image pickup apparatus capable of changing a live view photographing drive mode without causing freezing of live view display is demonstrated. When a switch is operated in a state where image signals output from an image pickup device sent via a first path are used for live view and image signals output from the image pickup device sent via a second path are used for AF, a drive mode of the image pickup device is changed such that image signals from the second path can be used for live view, then an acquisition destination of the live view signals is changed from the first path to the second path, then the drive mode is changed such that high-definition live view image signals are output from the first path, and then the acquisition destination of the live view signals is changed from the second path to the first path.

主权项

1. An image pickup apparatus comprising:
an image pickup device including a plurality of pixels which are arranged in a row direction and a column direction; a drive unit configured to drive said image pickup device in one or a plurality of photographing modes, the photographing modes selected from a first photographing mode in which image signals are read out from pixels of predetermined readout rows of said image pickup device, a second photographing mode in which image signals are read out from a different number of readout rows than the number of the predetermined readout rows in the first photographing mode, and a third photographing mode in which readout rows of said image pickup device from which image signals are read out do not overlap with the readout rows in the first photographing mode or with the readout rows in the second photographing mode; an output unit including at least two output paths including a first output path and a second output path for separately outputting image signals read out from said image pickup device when at least two of the photographing modes selected from the first photographing mode, the second photographing mode, and the third photographing mode are executed; and a control unit configured, when a state in which image signals in the first photographing mode output from the first output path are used for image display on a display unit, and image signals in the third photographing mode output from the second output path are used for a use different from the image display, is changed to a state in which the image signals to be used for the image display are from the image signals in the second photographing mode, to: temporarily change an acquisition destination of the image signals to be used for the image display from the first output path to the second output path, change the first photographing mode to the second photographing mode such that the image signals in the second photographing mode are output from the first output path, and change the acquisition destination of the image signals to be used for the image display from the second output path to the first output path.