Ключевые слова: background, black, concept, detective, discovery, enlarging, equipment, examining, exploration, eyesight, find, focus, glass, glasses, instrument, investigation, isolated, large, lens, look, loupe, lupe, magnification, magnifier, magnifiers, magnify, magnifying, nobody, object, optical, optics, realistic, research, science, scientific, search, seek, selection, sign, spotlight, spy, study, studying, symbol, tool, transparent, white, wooden, work, zoom,