Patent ID: 11930271
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 20:
21. A non-transitory computer-readable storage medium storing a program for causing a computer to execute processing in an intermediate accessory apparatus configured to be detachably mounted between an interchangeable lens apparatus and an image pickup apparatus, the intermediate accessory apparatus including a storage configured to store characteristic information about a combined optical characteristic of the interchangeable lens apparatus and the intermediate accessory apparatus, the characteristic information being associated with state information indicating a state of the interchangeable lens apparatus, the state information being communicated via a first communication between the interchangeable lens apparatus and the image pickup apparatus, the processing comprising:
receiving identification information about the interchangeable lens apparatus from the image pickup apparatus via a second communication between the intermediate accessory apparatus and the image pickup apparatus; and
transmitting the characteristic information corresponding to the identification information to the image pickup apparatus via the second communication, the characteristic information being stored in the storage.