These prompters mount using 15mm iris rods. Each comes with a Sony universal plate with retractable iris rods and extensions to accommodate any lens, but they will mount to any camera that is provided with the appropriate 15mm iris rod adapter. Weighing just a few pounds, they are incredibly portable, through-the-lens prompters and may be used for indoor or outdoor projects. They are bright, flat panel, LCD monitors and come with a variety of power cables to draw power from most cameras and/or body rigs (i.e. Steadicam Pro, Elite, Ultra etc).