Ключевые слова: 50, 50mm, aperture, background, black, camera, circle, close, design, diaphragm, digital, dslr, equipment, fixed, focal, focus, fragment, glass, image, industry, instrument, layout, length, lens, light, looking, macro, media, model, objective, optical, part, petal, photo, photograph, photographic, prime, professional, ray, reflection, ring, shadow, shine, standing, technology, view, white, zoom,