Patent ID: 8081874
Filing Date: 2011-12-20
Classification: G03B

Abstract:
1. An interchangeable lens that is mountable to a camera body and operates according to a command from the camera body, the interchangeable lens comprising: a diaphragm operable to regulate an amount of light from a subject by changing an aperture; a drive unit operable to change the aperture of the diaphragm; and a lens controller operable to control the drive unit to change the aperture of the diaphragm according to an instruction received from the camera body, wherein when the lens controller receives a new instruction from the camera body during an operation of changing the aperture of the diaphragm, the lens controller controls the drive unit to change the aperture of the diaphragm based on the new instruction without waiting for completion of the operation of changing the aperture according to a previous instruction.