Television cameras; Cameras (photography); Video recorders; Tripods for cameras; Camcorders; Eyepieces; Binoculars; Telescopes; Optical apparatus and instruments; Apparatus and instruments for astronomy; Stereoscopes; Microscopes; Optical lenses; Magnifying glasses (optics); Optical goods; Periscopes; Monitoring apparatus, electric; Refractors; Sighting telescopes for firearms; Objectives (lenses) (optics)