Sigma 40mm f/1.4 DG HSM Art

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Lens Specifications
Name Sigma 40mm f/1.4 DG HSM Art
Image Circle 35mm
Type Wide Prime
Focal Length 40mm
APS Equivalent 1.5x: 60mm; 1.6x: 64mm
Max Aperture f/1.4
Min Aperture f/16
Diaphragm Blades 9 (rounded)
Lens Construction 16 elements in 12 groups, including 1 aspherical, 3 FLD and 3 SLD elements
Diagonal Angle of View(Based on image circle) 56.8 degrees
Focus Details HSM (Hypersonic Motor) with full-time manual focus override
Front Element Rotation No
Zoom System n/a
Closest Focus 40cm / 15.7 in.
Magnification Ratio 0.15x / 1:6.5
Filter Size 82mm
Dimensions(Length x Diameter) 131mm x 87.8mm / 5.2 in. x 3.5 in.
Weight 1200g / 42.3 oz.
Notes Available AF Mounts: Canon EF, Nikon F, Sigma SA and Sony E; Compatible with Sigma's USB Dock and Mount Conversion Service
Typical Online Price US$1,399