Ключевые слова: aperture, art, background, black, camera, cap, control, dark, device, digital, dslr, electronic equipment, equipment, film, focal, focus, front, glass, hobby, illustration, instrument, isolated, lens, lens cap, light, macro, movie, object, objective, optic, optical, photo, photograph, photographer, photographic, professional, protective covering, reflection, regulator, shot, shutter, slr, studio, technology, telephoto, video, white, zoom,