Specifications Focal length 400 mm Maximum aperture f/4.5 Minimum aperture f/32 Lens construction 19 elements in 13 groups (including 1 ED glass element, 2 super ED glass elements and 1 SR lens element, elements with Nano Crystal Coat, and a fluorine-coated front lens element) Angle of view FX format: 6°10′ DX format: 4° Minimum focus distance 2.5 m/8.21 ft from focal plane Maximum reproduction ratio 0.16x Diaphragm blades 9 (rounded diaphragm opening) Filter-attachment size 95 mm Dimensions Approximately 104 mm/4.1 in. maximum diameter x 234.5 mm/9.3 in. (distance from camera lens mount flange) Weight Approximately 1,245 g/2 lb 12 oz (with tripod collar); approximately 1,160 g/2 lb 9 oz (without tripod collar) Supplied accessories LC-95B Lens Cap (front cap), LF-N1 Lens Cap (rear cap), HB-105 Lens Hood, CL-C5 Lens Case Show More Show Less
