Control apparatus, lens apparatus, image pickup apparatus, camera system, and control method

A control method for a camera system that includes a lens apparatus including a first optical system and a second optical system and is configured to move the first optical system and the second optical system relative to each other, and an image pickup apparatus that includes an image sensor and is attachable to and detachable from the lens apparatus, the control method comprising the steps of:

• acquiring a first evaluation value of the first optical system at a first focus detection position corresponding to the first optical system,
• determining a second focus detection position corresponding to the second optical system based on an first object image formed by the first optical system and a second object image formed by the second optical system,
• acquiring a second evaluation value of the second optical system at the second focus detection position, and
• moving the first optical system and the second optical system based on the first evaluation value and the second evaluation value.

A control apparatus for a camera system that includes a lens apparatus including a first optical system and a second optical system and is configured to move the first optical system and the second optical system relative to each other, and an image pickup apparatus that includes an image sensor and is attachable to and detachable from the lens apparatus, the control apparatus comprising:

• a memory storing instructions;
• and
• a processor configured to execute the instructions to:
• acquire a first evaluation value of the first optical system at a first focus detection position corresponding to the first optical system, and
• move the first optical system and the second optical system based on the first evaluation value.