Sigma 70mm f/2.8 EX DG Macro

 
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Lens Specifications
Name Sigma 70mm f/2.8 EX DG Macro
Image Circle 35mm
Type Telephoto Prime Macro
Focal Length 70mm
APS Equivalent 1.5x: 105mm; 1.6x: 112mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 9
Lens Construction 10 elements in 9 groups, including SLD elements
Diagonal Angle of View(Based on image circle) 34.3 degrees
Focus Details Floating focus system; Focus Limiter Switch
Front Element Rotation No
Zoom System n/a
Closest Focus 25.7cm / 10.1 in.
Magnification Ratio 1.0x / 1:1
Filter Size 62mm
Dimensions(Length x Diameter) 95mm x 76mm / 3.7 in. x 3.0 in.
Weight 525g / 18.5 oz
Notes Available AF Mounts: Sigma, Canon, Nikon, Sony, Pentax; Included Accessories: Lens Hood
Typical Online Price US$430