Patent ID: 8830336
Filing Date: 2014-09-09
Classification: G02B,G03B,H04N

Abstract:
1. An optical apparatus having an imaging optical system including at least a focus lens, the optical apparatus comprising: a first detection unit configured to detect angular rotational shake; a second detection unit configured to detect translational shake in such a way that is distinct from the first detection unit; a control unit configured to compute an image shake correction amount by producing a correction amount for the angular rotational shake and a correction amount for the translational shake based on the output of the first detection unit and the output of the second detection unit; and a driving unit configured to drive a shake correction unit in accordance with the image shake correction amount, wherein the control unit computes an image magnification for controlling image stabilization using positional information about a zoom lens and a focus lens of the optical system, and computes the image shake correction amount based on the image magnification, and wherein a degree of suppression of the change of the image magnification using for computing the image shake correction amount in the direction of increasing imaging magnification is larger than the degree of the suppression of the change of the image magnification using for computing the image shake correction amount in the direction of decreasing imaging magnification.