A camera body to which an interchangeable lens is mountable, includes an imaging unit operable to generate image data by capturing an object image, an acquisition unit operable to acquire optical data of the interchangeable lens from the interchangeable lens, a correction unit operable to correct the image data generated by the imaging unit based on the optical data acquired by the acquisition unit, and a display unit operable to display an image based on the image data. After the camera body is turned on, the display unit does not display the image based on the image data generated by the imaging unit, until the correction unit completes correction of the image data generated by the imaging unit.