Patent ID: 8422879

Claim:
A camera body to which an interchangeable lens can be attached, comprising: a controller operable to set an aperture value of a diaphragm of the interchangeable lens and a drive speed of the diaphragm; a sending unit operable to send a control signal for controlling the aperture value and the drive speed of the diaphragm set by the controller, to the interchangeable lens; and a setting unit operable to set one of a plurality of exposure modes for automatically controlling exposure, wherein during shooting of a moving image, the controller adjusts a number of times of control of driving the diaphragm for changing the aperture value to the set aperture value according to the set exposure mode, the plurality of exposure modes include a first mode that automatically adjusts only the diaphragm during a display of a moving image, and a second mode different than the first mode, and when the first mode is set by the setting unit, the controller adjusts the number of times of control of driving the diaphragm for changing the aperture value to the set aperture value so that the number of times of control when the first mode is set is more than the number of times of control when the second mode is set.