There is provided an intermediate adapter having a camera shake correction function, in which an exchange head provided with an image taking optical system and an imaging device is applicable to a camera system, and a camera system having the intermediate adapter. The exchange head is mounted on the intermediate adapter having a head driving section, and the exchange head mounted on the intermediate adapter is mounted on a camera main frame. The head driving section drives the exchange head in accordance with a detection signal detected by a camera shake detection section of the intermediate adapter.