Camera system with auto-focusing device.

摘要

The present invention relates to a camera system having an auto-focusing device which carries out a so-called overlapped operation in which storing of a light signal by a focus sensor and calculation of a lens drive distance based on the stored value are performed while a lens is driven. In the present invention, where a lens system mounted on the camera does not have a characteristic suitable to the overlapped operation, it is automatically detected and the overlapped operation is inhibited to prevent improper proceeding of the overlapped operation.