Binoculars; Monoculars; Angle viewfinder; Electronic animal identification apparatus; Hunting binoculars; Infrared cameras; Infrared detection apparatus; Laser rangefinders; Night vision goggles; Range finders for cameras; Telescopic lens sights; Telescopic sights; Thermal imaging cameras; Thermal imaging systems, not for medical use; Viewfinders, photographic; Telescopic riflescopes