Sigma 24mm f/1.4 DG HSM Art

 
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Lens Specifications
Name Sigma 24mm f/1.4 DG HSM Art
Image Circle 35mm
Type Wide Prime
Focal Length 24mm
APS Equivalent 1.5x: 36mm; 1.6x: 38.4mm
Max Aperture f/1.4
Min Aperture f/16
Diaphragm Blades 9 (rounded)
Lens Construction 15 elements in 11 groups, including 3 FLD, 4 SLD and 2 aspherical elements
Diagonal Angle of View(Based on image circle) 84.1 degrees
Focus Details HSM (Hypersonic Motor) with full-time manual focus override
Front Element Rotation No
Zoom System n/a
Closest Focus 25cm / 9.8 in.
Magnification Ratio 0.19x / 1:5.3
Filter Size 77mm
Dimensions(Length x Diameter) 90.2mm x 85mm / 3.6 in. x 3.3 in.
Weight 665g / 23.5 oz
Notes Available AF Mounts: Sigma, Canon, Nikon; Compatible with Sigma's USB Dock and Mount Conversion Service
Typical Online Price US$849 (Avail. March 2015)