Sigma 70-200mm f/2.8 EX DG Macro HSM APO

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Lens Specifications
Name Sigma APO 70-200mm f/2.8 EX DG Macro HSM
Image Circle 35mm
Type Telephoto Zoom
Focal Length 70 - 200mm
APS Equivalent 1.5x: 105 - 300mm; 1.6x: 112 - 320mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 9
Lens Construction 18 elements in 15 groups, including 2 ELD and 2 SLD elements
Diagonal Angle of View(Based on image circle) 34.3 to 12.3 degrees
Focus Details Internal; HSM with full-time manual override
Front Element Rotation No
Zoom System Rotary with lock; Internal
Closest Focus 100cm / 39.4 in.
Magnification Ratio 0.29x / 1:3.5
Filter Size 77mm
Dimensions(Length x Diameter) 184mm x 86.6mm / 7.2 in. x 3.4 in.
Weight 1380g / 48.7 oz
Notes Available AF Mounts: Sigma, Canon, Nikon
Typical Online Price US$890