An ideal all-around zoom for sports and photojournalism because of its exceptional wide zoom coverage ranging from 50mm normal to 300mm telephoto. Extra-low Dispersion (ED) glass insures outstanding picture quality. Independent focusing and zoom rings eliminate any-weight shift during zooming for balanced operation and radically new handling ease. Focuses in 2.5m (8.5ft. f/32 allows additional control of depth of field. Tripod socket collar rotates a full 360° with click-stops every 90°. 15 elements in 11 groups. 46° -8 10′, weight: 1950g. Dimensions: 98mm dia. x 239mm extension from lens flange:247mm long (overall). Accepts HK-5 slip-on lens hood, Usable teleconverter TC-201 or TC-14A.