Autofocus.  AF speed is properly adjusted to account for and leverage the shorter focal length and the brighter maximum aperture. Dual-pixel autofocus (DPAF) and video AF support. Focal length and aperture are adjusted in EXIF (see note 3). Image stabilization (IS) lens support. Store EXIF data (lens name, focal length and maximum/minimum aperture) for one manual lens in the adapter. Build-in multi-function Control Wheel (turn/ push-in) for assignable functions(eg. ISO,