Patent ID: 8408824
Filing Date: 2013-04-02
Classification: G03B,H04N

Abstract:
1. A camera apparatus to which a lens unit including at least a lens and an aperture is attachable/detachable, the camera apparatus being capable of acquiring from the lens unit lens identification information required for identifying the lens unit and lens characteristics data on the lens or the aperture of the lens unit corresponding the lens identification information, the camera apparatus comprising: a communication part to which the lens identification information and the lens characteristics data are inputted from the lens unit; a storage capable of storing the lens identification information and the lens characteristics data; and a controller that controls so that the lens identification information is acquired from the lens unit when the lens unit is attached to the camera apparatus, wherein when the lens identification information is acquired, the controller checks whether the lens identification information related to the acquired lens identification information is stored in the storage or not, and controls, if the lens identification information is found to be stored in the storage, so that the lens characteristics data corresponding the lens identification information is read from the storage, and controls, if the lens identification information is found to be not stored in the storage, so that the lens characteristics data is acquired from the lens unit and is stored in the storage together with the acquired lens identification information.