Ключевые слова: adventure, army, background, binocular, black, concentration, concept, copyspace, curiosity, discovery, equipment, expedition, exploration, explorer, find, focus, hand, instrument, lens, locate, look, looking, magnifying, man, metal, military, observe, one, optical, optics, people, person, scenic, scrutiny, search, spy, studio, surveillance, technology, telescope, tools, travel, unrecognizable, vacation, view, vision, watching, white, zoom,