Canon Kabushiki Kaisha

Hironori Seki

Atsushi Sugita

Hideya Takanashi

A control apparatus includes a motion vector detector configured to detect a motion vector, a calculator configured to calculate angular velocity information of an object based on the motion vector and an angular velocity detected by an angular velocity detector, an acquirer configured to acquire a result of an image stabilizing control in capturing a still image based on the angular velocity information of the object, and a controller configured to control a display unit so as to display the still image and information of the result of the image stabilizing control superimposed on the still image.

Control apparatus, image capturing apparatus, lens apparatus, image capturing system, control method, and storage medium

The accessory apparatus provides, with an image-capturing apparatus, a notification channel used for providing a notice from the image-capturing apparatus to the accessory apparatus, a first data communication channel used for data transmission from the accessory apparatus to the image-capturing apparatus, and a second data communication channel used for data transmission from the image-capturing apparatus to the accessory apparatus. An accessory controller acquires from a timer, in response to receiving a transmission request as the notice, a first time of receiving the transmission request and acquires, in response to receiving a specific command through the second data communication channel from the image-capturing apparatus, accessory information corresponding to the first time or a second time acquired based on the first time. The accessory controller transmits the accessory information to the image-capturing apparatus through the first data communication channel.

Accessory apparatus, image-capturing apparatus, control apparatus, lens apparatus, control method, computer program and storage medium storing computer program

The image-capturing apparatus communicates with an accessory apparatus using a clock/communication request channel and first and second data communication channels. The camera controller switches its communication method between a first communication method in which data communication is performed while a clock signal is alternately switched between first and second levels and a second communication method in which data communication is performed in response to a communication request from the camera controller to the accessory apparatus, which is output by switching a signal level of the clock/communication request channel from the first level to the second level. The camera controller, in response to detecting a communication error in the first and second communication methods, transmits to the accessory apparatus through the second data communication channel a specific signal for restoring the communication while keeping the signal level of the clock/communication request channel at the first level.

Image-capturing apparatus, accessory apparatus, and control method therefor with changing signal level of communication channel from one level to another

Image-capturing apparatus, accessory apparatus and control method therefor

An image capture apparatus that makes it possible to properly update a second accessory that is attached to a first accessory attached to the image capture apparatus, and a method for controlling the image capture apparatus, are disclosed. An update target accessory, out of the attached first accessory and the second accessory attached to the first accessory, is set based on the operation status of the first accessory and the operation status of the second accessory. If it is determined that the operation status of the first accessory is abnormal, the first accessory is set as the update target accessory, regardless of the operation status of the second accessory.

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Sagamihara, Japan

Hironori Seki