| | | introduced 1995 Focal length and maximum aperture: 70-200mm 1:2.8 Lens construction: 18 elements in 15 groups Diagonal angle-of-view: 34°-12° Focus adjustment: ring-type USM, inner focusing system, full-time manual focus Closest focusing distance: 1.5 m/ 5.0 ft., 0.16 x magnification Zoom system: rotation type Filter size: 77mm Max. diameter x length, weight: 84.6 x 193.6mm, 1,310g | | |