Focal Length & Maximum Aperture 70-200mm 1:2.8
Lens Construction 23 elements in 18 groups
Diagonal Angle of View 34° - 12°
Focus Adjustment Inner focusing system with USM
Closest Focusing Distance 1.3m / 4.3 ft.
Zoom System Rotating Type
Filter Size 77mm
Max. Diameter x Length, Weight 3.4" x 7.8", 3.24 lbs. / 86.2mm x 197mm, 1470g