LensFocal Length & Maximum Aperture 70-200mm 1:2.8
Lens Construction 18 elements in 15 groups
Diagonal Angle of View 34 - 12
Focus Adjustment Inner focusing system with USM
Closest Focusing Distance 1.5m / 4.9 ft.
Zoom System Rotating Type
Filter Size 77mm
Max. Diameter x Length, Weight 3.3" x 7.6", 2.9 lbs. / 84.6mm x 193.6mm, 1310g