Patent ID: 8032019

Claim:
A camera body to which an interchangeable lens is mountable, the interchangeable lens including a diaphragm and capable of sending driving speed information of the diaphragm, wherein the camera body comprises: a receiving unit operable to receive the driving speed information of the diaphragm from the interchangeable lens; an imaging unit operable to capture a subject image formed by the interchangeable lens at a predetermined frames-per-second rate to generate image data; a controller operable to set an imaging condition for the imaging unit; and a sending unit operable to send a control signal to the interchangeable lens for changing brightness information of the interchangeable lens, and the controller calculates a number of frames which the imaging unit captures from a start to an end of a driving of the diaphragm according to the received driving speed information so as to set the imaging condition for each one of the frames when the sending unit sends the control signal to the interchangeable lens.