Remote Controller's Remote Focus State. The focus product has one dial (focus control) that controls two separate parts of the camera: focal length and aperture. However it can only control one of these at any one time and is an absolute dial, meaning that a specific rotational position of the dial corresponds to a specific focal length or aperture. This means that whenever the dial control mode is changed, the dial first has to be reset to the new mode's previous dial position before the dial can be used to adjust the setting of the new mode. Example workflow:
Use dial to set an Aperture of f2.2
Change dial control mode to focal length (set ControlType)
true if the focus control works. The control can be either changing the Aperture or Focal Length. If it is false, follow the Direction to rotate the Remote Focus Device until it turns to true again.