Sigma 14mm f/2.8 EX Aspherical HSM

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Lens Specifications
Name Sigma 14mm f/2.8 EX Aspherical HSM
Image Circle 35mm
Type Wide Prime
Focal Length 14mm
APS Equivalent 1.5x: 21mm; 1.6x: 22.4mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 7
Lens Construction 14 elements in 10 groups, including 2 aspherical and 2 SLD elements
Diagonal Angle of View(Based on image circle) 114.2 degrees
Focus Details Internal focus; HSM with full-time manual override
Front Element Rotation No
Zoom System n/a
Closest Focus 18cm / 7.1 in.
Magnification Ratio 0.2x / 1:5
Filter Size Rear (Gelatin Filter)
Dimensions(Length x Diameter) 91mm x 82mm / 3.6 in. x 3.2 in.
Weight 630g / 22.2 oz
Notes Available AF Mounts: [HSM version]: Sigma, Canon, Nikon; [w/o HSM]: Minolta, Pentax
Typical Online Price US$849.99