Zoom-Nikkor 80-200mm f/2.8D ED (2.5x) High-performance, high-speed, telephoto zoom lens Fast and constant f/2.8 maximum aperture ED glass elements for high-resolution and high-contrast image even at maximum aperture Lens construction: 16 elements in 11 groups Closest focusing: 1.8m/6 ft. (1.5m/4.9 ft. with macro setting) Filter attachment size: 77mm Hood: HB-7