An input device includes a sensor configured to generate a signal related to a change in inertia around at least one axis of the input device in response to a contacting of the input device. A clamp removes separate articles in each parallel path. In a normal mode, the control unit fixedly applies a first voltage to the first electrode and applies a data voltage of the first voltage or the second voltage to the second electrode, based on an instruction from the control unit. Some embodiments use a remote camera wire-connected to the image processor to obtain scene information, while other embodiments use a second fiber bundle to convey image information from an external remote lens to a local camera.