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)
Dimensions (D x L): 236.5mm x 726mm (9.3 in. x 28.6 in.)
Weight: 15,700g (553.7 oz.)