Telescopes; Microscopes; Binoculars; Monoculars; Spotting scopes; Downloadable computer software applications; Filters for optical devices; Tripods for binoculars; Tripods for telescopes; Tripods for cameras; Cameras; Optical lenses; Eyepieces; Telescopic lens sights; Computer serial ports; Remote controls; Computer software; Electronic power supplies; Adapters [electricity]; Camera lens adapters; Portable power supplies (rechargeable batteries); Cases adapted for binoculars; Lens cases; Range finders for cameras; Imaging apparatus; Target location apparatus [telescopic]; Field glasses; Computer components and parts; Information technology and audio-visual, multimedia and photographic devices; Scientific and laboratory devices for treatment using electricity; Scientific research and laboratory apparatus, educational apparatus and simulators; Scientific apparatus and instruments.;