Imaging apparatus, interchangeable lens, intermediate accessory, and control methods therefor

An interchangeable lens attachable to an intermediate accessory, which is attachable to an imaging apparatus, the interchangeable lens comprising:

• at least one processor and at least one memory coupled to each other and to perform operations including:
• controlling, as a first communication control, a first communication via a first communication path where it is possible to mutually communicate with the imaging apparatus,
• controlling, as a second communication control, a second communication via a second communication path where it is possible to mutually communicate with the imaging apparatus via the intermediate accessory, and
• storing identification information of the interchangeable lens and optical information of the interchangeable lens,
• wherein the first communication control is configured to transmit information including the identification information of the interchangeable lens, to the imaging apparatus in response to first instruction information obtained from the imaging apparatus, and
• wherein the second communication control is configured to transmit, in response to second instruction information obtained from the imaging apparatus, information indicating that a relevant accessory from among a plurality of accessories including the interchangeable lens and the intermediate accessory is a termination of the second communication.

An intermediate accessory attachable between an imaging apparatus and an interchangeable lens, the intermediate accessory comprising:

• at least one processor and at least one memory coupled to each other and to perform operations including:
• controlling a communication via a communication path where it is possible to mutually communicate with the imaging apparatus, and
• storing identification information and optical information of the intermediate accessory,
• wherein controlling includes transmitting, to the imaging apparatus by the controlled communication, the identification information of the intermediate accessory and information indicating whether or not a correction of optical information of the interchangeable lens is necessary in response to first instruction information obtained from the imaging apparatus.

A control method for an imaging apparatus to which an interchangeable lens and an intermediate accessory, which is attachable between the interchangeable lens and the imaging apparatus, are attachable, the control method comprising:

• controlling, as a first communication control, a first communication via a first communication path where it is possible to mutually communicate with the interchangeable lens;
• controlling, as a second communication control, a second communication via a second communication path where it is possible to mutually communicate with the intermediate accessory;
• obtaining information from the interchangeable lens and the intermediate accessory;
• storing the obtained information;
• and
• determining, as an optical correction hardware, a device from among the imaging apparatus, the interchangeable lens, and the intermediate accessory which performs a correction of optical information of the interchangeable lens,
• wherein the first communication control is configured to transmit first instruction information to the interchangeable lens via the first communication path and, as a response, obtain first information including identification information of the interchangeable lens from the interchangeable lens,
• wherein the second communication control is configured to transmit second instruction information to the intermediate accessory via the second communication path and, as a response, obtain second information including identification information of the intermediate accessory and information indicating whether or not the correction of the optical information of the interchangeable lens is necessary, and
• wherein determining includes determining the optical correction hardware, from among the imaging apparatus, the interchangeable lens, and the intermediate accessory which performs the correction of the optical information of the interchangeable lens based on the first information and the second information.

A control method for an interchangeable lens attachable to an intermediate accessory, which is attachable to an imaging apparatus, the control method comprising:

• controlling, as a first communication control, a first communication via a first communication path where it is possible to mutually communicate with the imaging apparatus;
• controlling, as a second communication control, a second communication via a second communication path where it is possible to mutually communicate with the imaging apparatus via the intermediate accessory;
• and
• storing identification information of the interchangeable lens and optical information of the interchangeable lens,
• wherein the first communication control is configured to transmit information, including the identification information of the interchangeable lens, to the imaging apparatus in response to first instruction information obtained from the imaging apparatus, and
• wherein the second communication control is configured to transmit, in response to second instruction information obtained from the imaging apparatus, information indicating that a relevant accessory from among a plurality of accessories including the interchangeable lens and the intermediate accessory is a termination of the second communication.

A control method for an intermediate accessory attachable between an imaging apparatus and an interchangeable lens, the control method comprising:

• controlling a communication via a communication path where it is possible to mutually communicate with the imaging apparatus;
• and
• storing identification information and optical information of the intermediate accessory,
• wherein controlling includes transmitting, to the imaging apparatus by the controlled communication, the identification information of the intermediate accessory and information indicating whether or not a correction of optical information of the interchangeable lens is necessary in response to first instruction information obtained from the imaging apparatus.

An imaging apparatus to which an interchangeable lens and an intermediate accessory, which is attachable between the interchangeable lens and the imaging apparatus, are attachable, the imaging apparatus comprising:

• a first communication terminal configured to transmit information to the interchangeable lens;
• a second communication terminal configured to obtain information from the intermediate accessory;
• and
• at least one processor and at least one memory coupled to each other and to perform operations including:
• obtaining, from the intermediate accessory, information related to a method for a correction of optical information of the interchangeable lens and information related to a parameter for the correction of the optical information of the interchangeable lens, and
• transmitting, to the interchangeable lens via the first communication terminal, the information related to the method for the correction and the information related to the parameter for the correction.

An intermediate accessory which is attachable between an imaging apparatus and an interchangeable lens, the intermediate accessory comprising:

• a first communication terminal through which information transmitted from the imaging apparatus to the interchangeable lens passes;
• a second communication terminal configured to transmit a response with respect to a request received from the imaging apparatus;
• and
• at least one processor and at least one memory coupled to each other and to perform operations including:
• transmitting, to the imaging apparatus via the second communication terminal, information related to a method for a correction of optical information of the interchangeable lens and information related to a parameter for the correction of the optical information of the interchangeable lens, and
• causing the information related to the method for the correction and the information related to the parameter for the correction to pass through the first communication terminal.

An interchangeable lens which is attachable to an intermediate accessory attached to an imaging apparatus, the interchangeable lens comprising:

• a first communication terminal configured to receive information transmitted from the imaging apparatus;
• a third communication terminal configured to transmit information to the imaging apparatus;
• and
• at least one processor and at least one memory coupled to each other and to perform operations including:
• receiving, via the first communication terminal, information related to a method for a correction of optical information of the interchangeable lens and information related to a parameter for the correction of the optical information of the interchangeable lens,
• correcting optical information based on the information related to the method for the correction and the information related to the parameter for the correction, and
• transmitting the corrected optical information via the third communication terminal.

A control method for an interchangeable lens which is attachable to an intermediate accessory attached to an imaging apparatus, wherein the interchangeable lens includes a first communication terminal configured to receive information is-transmitted from the imaging apparatus, and a third communication terminal configured to transmit information to the imaging apparatus, the control method comprising:

• receiving, via the first communication terminal, information related to a method for a correction of optical information of the interchangeable lens and information related to a parameter for the correction of the optical information of the interchangeable lens;
• correcting optical information based on the information related to the method for the correction and the information related to the parameter for the correction;
• and
• transmitting the corrected optical information via the third communication terminal.