Used only for a test screening indoors, practically unused. Allows the use of M-mount lenses with autofocus on Z-mount cameras. All boxes and accessories are included. Please note that this is a used item and is sold as-is, with no returns or refunds. From the Focus Camera HP: The TECHART TZM-02 is an electronic mount adapter that allows Leica M-mount lenses to autofocus on Nikon Z-mount cameras. It is equipped with an AF drive motor that automatically moves the lens's mount surface back and forth to achieve focus.