Focal length: 200-500mm, 400-1000mm
Maximum aperture: 2.8
Minimum Aperture : 22
Lens Construction : 17 Elements in 13 Groups
Angle of View : 12.3 - 5 degrees
Number of Diaphragm Blades : 9 Blades
Minimum Focusing Distance : 200-500cm / 78.7-196.9in.
Maximum Magnification : 1:7.7
Filter Size: 72mm (Rear) (Petal-type Hood)
Dimensions (D x L) 236.5mm x 726mm (9.3 in. x 28.6 in.)
Weight : 15 700g (553.7 oz.)