Patent ID: 7844176

Claim:
An imaging device, comprising: an imaging unit for receiving subject light flux made incident by a photographing lens on an image forming surface, and subjecting the imaged subject image to photoelectric conversion to output subject image data; a display unit for carrying out a live view display operation using subject image data acquired by the imaging unit; a first contrast autofocus unit for obtaining contrast information of a subject image from the subject image data, and guiding the photographing lens into a first in-focus permissible range based on the contrast information; a phase difference autofocus unit for moving a mirror member in an optical path of the photographing lens or arranging the mirror member there, receiving the subject light flux reflected by the mirror member and detecting a defocus amount of the photographing lens by a phase difference method, and guiding the photographing lens into a second in-focus permissible range according to the detection results; a release button having a two stage operating structure, of a half pressed operation and a fully pressed operation; and a control unit for, when the release button has been pressed down halfway during execution of the live view display operation, executing a focus adjustment operation using the first contrast autofocus unit, and after that, when the release button has been pressed fully, executing a focus adjustment operation using the phase difference autofocus unit.