Canon Kabushiki Kaisha

Hideyasu Hongu

Atsushi Kato

Makoto Yokozeki

Toshihiko Tomosada

Kazunori Ishii

Atsuya Kawanishi

Taira Komatsuzaki

Hirofumi Honda

Motoyuki Asano

Tatsuya Wada

A control apparatus is configured to control a display unit configured to superimpose and display a captured image captured by an image sensor and display items indicating in-focus degrees of a plurality of focus detecting areas in the captured image. The control apparatus includes a memory that stores a set of instructions, and at least one processor that executes the set of instructions to change a display state of the display items according to a state of a manual focus operation by a user.

Control apparatus, control method, image pickup apparatus, and storage medium

A focus control device that is capable of preventing an object intended by a user from being excluded from a focusing target. The focus control device performs focus adjustment by using one of autofocus and manual focus. When focus control is switched from the autofocus to the manual focus, and then switched to the autofocus, whether to perform focus adjustment with settings of the autofocus set before being switched to the manual focus, or with settings of the autofocus to be set after being switched from the manual focus, is controlled according to whether or not there is an object focused by the manual focus.

Focus control device capable of preventing object from being excluded from focusing target, focus controlling method, and storage medium

A focus adjustment apparatus comprises a detection unit that detects one or more main subject candidates for a main subject from image signals based on a predetermined first condition, a selection unit that selects the main subject from the one or more main subject candidates, an acquisition unit that acquires operation information of an operation unit for moving a position of a focus lens, and a focus adjustment unit that controls the focus lens so as to focus on the selected main subject in a case where an autofocus mode is set and the operation unit is not operated. In a case where the operation unit is operated, the selection unit selects the main subject based on an in-focus position of the focus lens and fixes the selected main subject.

Focus adjustment apparatus and method, and image capturing apparatus

An apparatus includes at least one processor programmed to perform operations of the following units: a focus detection unit configured to detect a defocus amount; and a control unit configured to control a focus lens to move based on the defocus amount, wherein the control unit includes three speed control patterns of acceleration control, constant speed control, and deceleration control, and the speed control patterns are changed based on at least two or more parameters.

Lens control apparatus, control method, and storage medium

A control apparatus includes a focus detector configured to detect a defocus amount based on a phase difference between a pair of image signals generated based on light beams having passed through mutually different pupil areas in an imaging optical system, and a controller configured to control a focus lens in the imaging optical system. The controller is configured to perform an autofocus control based on the defocus amount detected by the focus detector, and a manual focus control based on an operation of a user via an operation member. The controller performs the autofocus control when a change amount relating to a speed of the focus lens in the manual focus control falls within a predetermined range.

Control apparatus, imaging apparatus, and storage medium

In a focus control apparatus, an acquisition unit periodically acquires a pair of focus detection signals, a focus detection unit detects a focus state of a first area using a phase difference and, in a case where the focus state of the first area is not within a first range, detects a focus state using a phase difference in a second area arranged in a periphery of the first area, and a control unit controls to perform focus control. The focus control is performed based on the focus state of the second area if it is within a second range and, if a subject exists on a near side, focus control is performed based on the focus state of the first area regardless of the focus state of the second area being detected or not.

Focus control apparatus, focus control method and storage medium

One or more lens control apparatuses, methods and storage mediums for use therewith are provided herein. In at least one lens control apparatus, a camera control unit determines that a subject is in focus if an amount of defocus is within a first range in a first mode where the camera control unit has not determined that the subject is a moving subject, and determines the focus state on a basis of the amount of defocus and a reversed state of a drive direction of a focus lens based on the amount of defocus in a second mode where the camera control unit has determined that the subject is a moving subject.

Lens control apparatus and control method thereof

A focus detection apparatus includes an image pickup unit configured to perform photoelectric conversion on a luminous flux having passed through an imaging optical system, a focus detection unit configured to detect a focusing state based on a signal generated by the image pickup unit, a setting unit configured to set a first region within an image generated by the image pickup unit, a display controller configured to control such that an index representing the focusing state detected by the focus detection unit within the first region can be superimposed on the image, and an obtaining unit configured to obtain information regarding a predetermined subject in the image. In this case, the setting unit sets a position of the first region based on information regarding at least one of a position, a size, and a direction of the predetermined subject in the image.

Focus detection apparatus and control method therefor

An imaging apparatus, to which a lens apparatus can be attached, includes an imaging unit that executes charge accumulation in synchronization with a reference signal and generates an imaging signal, a control unit that controls the data communication with an attached lens apparatus and executes focus detection by using data received from the lens apparatus. The control unit executes data communication with the lens apparatus in a first communication mode in which predetermined data is periodically communicated in synchronization with the reference signal. When a predetermined operation that instructs preparation for still image shooting is being carried out by a user, the control unit changes the first communication mode to a second communication mode in which the control unit executes data communication with the lens apparatus out of synchronization with the reference signal.

Imaging apparatus and control method, lens apparatus and control method, using selective communication methods for improved focus adjustment

One or more lens control apparatuses, methods and storage mediums for use therewith are provided herein. In a third mode where a camera control unit performs control in such a manner as to drive a focus lens at a preset speed, if the camera control unit has determined that a subject is a moving subject, when the camera control unit determines that the subject is in focus, a transition is made to a second mode where a drive speed of the focus lens is variably controlled on a basis of the amount of defocus.

A focus detection apparatus includes a first setting unit configured to set a first focus detection area and a second focus detection area, a first focus detection unit configured to perform focus detection of a phase difference detection method on each of the first and second focus detection areas by using the pair of parallax image signals, a reliability acquisition unit configured to obtain reliability of the focus detection of the first and second focus detection areas by the first focus detection unit, a second setting unit configured to determine a third focus detection area by using the reliability of the focus detection of the first and second focus detection areas, obtained by the reliability acquisition unit, and a second focus detection unit configured to perform focus detection by using the third focus detection area.

Focus detection apparatus, focus adjustment apparatus, imaging apparatus, and focus detection method setting focus detection area using reliability

A focus control apparatus having a first mode in which a position of a focus lens is automatically changed, and a second mode in which the position of the focus lens is manually changed, the focus control apparatus comprises: a setting unit configured to set a first area in the first mode and a second area in the second mode; a focus detection unit configured to detect a focus state based on signals output from areas of an image capturing unit; and a focus control unit configured to control the position of the focus lens in the first mode, wherein upon switching from the second mode to the first mode again, the setting unit sets the first area based on a second area that has been determined to be in an in-focus state.

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Yokohama, Japan

Hideyasu Hongu