Sigma 200-500mm f/2.8 EX DG APO

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Lens Specifications
Name Sigma 200-500mm f/2.8 EX DG APO
Image Circle 35mm
Type Telephoto Zoom
Focal Length 200 - 500mm
APS Equivalent 1.5x: 300 - 750mm; 1.6x: 320 - 800mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 9
Lens Construction 17 elements in 13 groups, including SLD and 3 ELD elements
Diagonal Angle of View (Based on image circle) 12.3 - 5 degrees
Focus Details Internal
Front Element Rotation No
Zoom System Power Zoom
Closest Focus 200 - 500cm / 78.7 - 196.9 in.
Magnification Ratio 0.13x / 1:7.7
Filter Size 72mm (Rear)
Dimensions(Length x Diameter) 726mm x 236.5mm / 28.6 in. x 9.3 in.
Weight 15.7kg / 34.6 lb
Notes Available AF Mounts: Sigma, Canon, Nikon; The dedicated 2x "Attachment" ensures autofocusing at the 1000mm focal length.
Typical Online Price US$25,000