Patent ID: 8253823

Claim:
A camera body to which an interchangeable lens is mountable, the interchangeable lens including an optical member operable to change an optical condition and a drive unit operable to drive the optical member at a drive speed within a predetermined range, the camera body comprising: a receiving unit operable to receive silent speed information from the interchangeable lens, the silent speed information indicating a setting value or an allowable setting range related to a silent operation of the drive unit, the setting value and the allowable setting range being a value and a range of the drive speed within the predetermined range, respectively; and a controller operable to generate a control signal for driving the drive unit based on the received silent speed information and send the generated control signal to the interchangeable lens for driving the drive unit at a low drive sound level, wherein the drive unit is driven at the low drive sound level when the camera body is performing an audio recording operation.