Patent ID: 8218069

Claim:
A camera body to which a lens unit for forming an optical image of a subject and a flash device for shining light on the subject can be mounted, comprising: an imaging element configured to convert an optical image of the subject into an electrical signal, and configured to produce image data for the subject; a hot shoe to which the flash device can be mounted; an internal light source arranged to shine light on the subject; and a camera controller configured to calculate an evaluation value on the basis of the image data produced by the imaging element, and configured to perform video autofocusing on the basis of the evaluation value, the camera controller configured to control the imaging element and the internal light source so that when the camera controller decides auxiliary light is needed, and the camera controller decides that the flash device mounted to the hot shoe has an external auxiliary light source arranged to emit near infrared light, the image data is acquired while the internal light source emits light during the video autofocusing, wherein the camera controller is configured to acquire, from the flash device mounted to the hot shoe, light source identification information related to whether or not the flash device has the external auxiliary light source arranged to emit near infrared light and is configured to decide whether or not the flash device has the external auxiliary light source on the basis of the light source identification information.