Patent ID: 9565352
Date: 2017-02-07
CPC Classifications: H04N

Claim:
1. An optical apparatus operable in a still image pickup mode and a motion image pickup mode, the optical apparatus comprising: an image sensor configured to detect a pair of image signals, and configured to photoelectrically convert an optical image formed by an optical system; a first focus detector configured to provide a focus detection based upon a phase difference between the pair of image signals detected by the image sensor; a second focus detector configured to provide a focus detection based upon a contrast of the optical image formed by the optical system; and a controller configured to perform a focusing operation in the motion image pickup mode by using the first focus detector when an image magnification variation amount by a wobbling of the optical system used for the second focus detector is equal to or higher than a threshold and by using the second focus detector when the image magnification variation amount is less than the threshold.