Ключевые слова: adventure, army, background, binocular, binoculars, black, business, equipment, exploration, find, front, future, glass, instrument, isolated, lens, look, magnifying, metal, military, object, observe, optical, optics, orange, plastic, search, single, spy, studio, success, surveillance, symbol, technology, telescope, tools, traditional, view, vision, watching, white, zoom,