Control apparatus, interchangeable lens, control method, and storage medium

An interchangeable lens attachable to, detachable from, and communicable with an image pickup apparatus, the interchangeable lens comprising:

• a control apparatus;
• and
• a unit,
• wherein the control apparatus includes:
• a memory storing instructions;
• and
• a processor that executes the instructions to:
• determine whether the interchangeable lens is attached to the image pickup apparatus,
• control the unit using at least one of information from the image pickup apparatus and information from the interchangeable lens in a case where the interchangeable lens is attached to the image pickup apparatus, and
• control the unit using information from the interchangeable lens in a case where the interchangeable lens is not attached to the image pickup apparatus.

A non-transitory computer-readable storage medium storing a program that causes a computer to execute a control method for controlling an interchangeable lens that includes a unit and is attachable to, detachable from, and communicable with an image pickup apparatus, the control method comprising:

• determining whether the interchangeable lens is attached to the image pickup apparatus;
• controlling the unit using at least one of information from the image pickup apparatus and information from the interchangeable lens in a case where the interchangeable lens is attached to the image pickup apparatus;
• and
• controlling the unit using information from the interchangeable lens in a case where the interchangeable lens is not attached to the image pickup apparatus.