Cameras and accessories therefor, namely, video circuit boards, camera lenses, mounts for camera lenses, camera lens controllers, filter controllers, infrared illuminators, camera setup tools, namely, devices that receive video signals from the camera and display them on a screen for viewing by a user to assist the user in setting up camera functions, such as, field of view and focus, and video storage devices, namely, semiconductor memory devices, hard disk storage devices, and magnetic disk and tape storage devices; camera mountings, viewing domes, camera enclosures, camera cases, pan and tilt mechanisms, electrical and electromechanical controls for controlling the pan, tilt, rotation, focus, zoom, auto back focus, and moving the imager of the camera, electric switches, electrical cables, electrical power supplies, electrical transformers, relays, video signal interfaces, amplifiers, inserters, video transmitters, video receivers, and mounting cabinetry for same