Product weight - 1070g / Maxiumum diameter x length (mm) - 88 x 154.5 / Lens construction (groups/elements) - 16/20 / Angle of view - Nikon film SLR and FX-format D-SLR cameras: 84�-34�20'. Nikon DX-format D-SLR cameras: 61�-22�50' / Number of diaphragm blades - 9 (rounded diaphragm opening) / Minimum focus distance - 35-50mm focal length: 0.38m (1.2 ft) from focal plane. 24, 28, 70mm focal lengths: 0.41m (1.3 ft) from focal plane / Maximum reproduction ratio - 0.28x / Filter-attachment size - 82mm / Minimum aperture - f/22 / Maximum aperture - f/2.8