Binoculars; Microscopes; Monoculars; Telescopes; Distance measuring apparatus; Hunting binoculars; Lenses for telescopes; Microscopes, including stereomicroscopes; Optical lens sights; Optical lenses; Optical or telescopic lens sights; Reflecting telescopes; Reflectors for telescopes; Sighting telescopes for firearms; Telescopic lens sights; Telescopic sights; Telescopic sights for artillery; Telescopic sights for firearms; Tripods; Zenith telescopes