Canon Kabushiki Kaisha

Tomohiro Ino

Yuki Shinzato

Satoshi Maetaki

Tomoki Tokita

Junichi Saito

Toru Matsumoto

Masato Katayose

Maki Yokoya

A control apparatus for use in an imaging system that includes a first correcting member movable for image stabilization and provided to one of an image pickup apparatus and a lens apparatus detachably attachable to the image pickup apparatus, and a second correcting member movable for the image stabilization and provided to the other of the image pickup apparatus and the lens apparatus acquires first correction ratios of the first correcting member and the second correcting member for angular shake of the imaging system, and second correction ratios of the first correcting member and the second correcting member for shift shake of the imaging system.

Control apparatus, lens apparatus, image pickup apparatus, imaging system, control method, and storage medium

A control apparatus, which controls an image pickup system including a first apparatus that is one of an image pickup apparatus and a lens apparatus and a second apparatus that is the other, includes an acquisition unit configured to acquire first information on a first image stabilizing remaining amount at an off-axis image height according to correction by a first image shake corrector provided in the first apparatus and second information on a second image stabilizing remaining amount at the off-axis image height according to correction by a second image shake corrector provided in the second apparatus, and a control unit configured to control at least one of the first image shake corrector and the second image shake corrector on the basis of correction ratios of the first image shake corrector and the second image shake corrector determined using the first information and the second information.

Control apparatus, lens apparatus, image pickup apparatus, image pickup system, control method, and a non-transitory computer-readable storage medium

An optical system includes a first unit having positive refractive power, a second unit having positive or negative refractive power and configured to move in focusing, and a third unit having negative refractive power in order from an object side to an image side. A distance between adjacent two of the units changes in focusing. When a distance on an optical axis from a lens surface closest to the object side to a lens surface closest to the image side is TL, a distance on the optical axis from a lens surface closest to the object side to a lens surface closest to the image side in the third unit is TL3, a sum of thicknesses, on the optical axis, of lenses in the third unit is SD3, and the largest of the thicknesses of the lenses in the third unit is DM3, the optical system satisfies predetermined conditional inequalities.

Optical system and imaging apparatus including the same

A control apparatus sets a control ratio in accordance with image shift sensitivities for tilt of an optical system and image shift sensitivities for drive of first and second image stabilization units, the control ratio with which an image blur at an image central part is corrected and an image blur residue amount at an image peripheral part is reduced, in a case where the image shift sensitivities for tilt of the optical system for each image height in first and second image height directions different are different, the image shift sensitivities for drive of the first and second image stabilization units in the first image height direction are different from each other, and the image shift sensitivities for drive of the first and second image stabilization units in the second image height direction are different.

Control apparatus, image stabilization apparatus, optical apparatus, control method, and storage medium

A control apparatus comprising at least one processor or circuit configured to execute a plurality of tasks includes a first acquisition task configured to acquire information on image shift sensitivity relative to decentering of an image stabilizing optical system, the information being associated with an image point position of an image pickup optical system, the image pickup optical system including the image stabilizing optical system configured to perform image stabilization, and a second acquisition task configured to acquire a first image stabilizing driving amount of the image stabilizing optical system during the image stabilization. The second acquisition task is configured to acquire the first image stabilizing driving amount associated with a predetermined image point position by using the information on the image shift sensitivity associated with the predetermined image point position.

Control apparatus, image pickup apparatus, lens apparatus, camera system, control method, and memory medium that control image stabilization

A control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first acquiring task configured to acquire information on an image shift sensitivity to a tilt of an imaging optical system corresponding to an image point position of the imaging optical system, which information includes an influence of a distortion of the imaging optical system, and a second acquiring task configured to acquire an image-stabilization driving amount that is used for an image stabilization by an image stabilizer configured to provide the image stabilization. The second acquiring task acquires the image-stabilization driving amount corresponding to a predetermined image point position using the information on the image shift sensitivity corresponding to the predetermined image point position.

Control apparatus, image pickup apparatus, lens apparatus, control method, and storage medium, that provide an image-stabilization driving amount for a predetermined image point position

An optical system consists of, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power. A distance between adjacent lens units changes during focusing. The second lens unit moves during the focusing. The following conditional expression is satisfied:&#x2212;0.20&#x3c;3/&#x3c;&#x2212;0.05where f is a focal length of the optical system focused on an object at infinity and f3 is a focal length of the third lens unit.

Optical system and imaging apparatus having the same

A lens apparatus includes an imaging optical system includes an imaging optical system including a plurality of lenses, a first holding member holding at least a first lens closest to an object among the plurality of lenses, and configured to move in an optical axis direction of the imaging optical system to perform focusing, a barrel member provided on an outside of the first holding member, and a control unit configured to control a driving unit configured to move the first holding member. When focus is at infinity, an edge surface on an object side of the barrel member is positioned on the object side of a surface vertex of an object-side surface of the first lens. When focus is at infinity, an edge surface on the object side of the control unit is positioned on the object side of the surface vertex.

Lens apparatus and imaging system including the same

A control apparatus configured to control at least one of a first driver that drives an image sensor for a first image stabilization and a second driver that drives a lens for a second image stabilization includes at least one processor or circuit configured to execute a plurality of tasks including a determination task configured to determine a ratio between the first image stabilization by the first driver and the second image stabilization by the second driver, using information on a changing amount of an imageable area of an optical system including the lens relative to a unit correcting angle of the second image stabilization, and information on a correcting angle of the first image stabilization relative to a unit driving amount of the image sensor.

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Utsunomiya, Japan

Tomohiro Ino