| Attribute | Value |
|---|---|
| Lens Construction | 16 elements in 12 groups, including 1 aspherical, 3 FLD and 3 SLD elements |
| Diameter | 87.8 mm |
| Diagonal Angle of View | 56.80 degree |
| Diaphragm Blades Type | rounded |
| Aperture | 1.40 - 16.00 f |
| Notes | Available AF Mounts: Canon EF, Nikon F, Sigma SA and Sony E; Compatible with Sigma's USB Dock and Mount Conversion Service |
| Filter Size | 82 mm |
| Magnification Ratio | 0.15 x |
| Closest Focus | 0.4 m |
| Focus Details | HSM (Hypersonic Motor) with full-time manual focus override |
| Length | 131 mm |
| Diaphragm Blades | 9 |
| APS Equivalent | 1.5x: 60mm; 1.6x: 64mm |
| Focal Length | 40.00 mm |
| Image Circle | 35mm |
| Brand | Sigma |
| Name | Sigma 40mm f/1.4 DG HSM Art |
| Weight | 1200 g |
| Type | Wide Prime |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Zoom System | Add |
| Front Element Rotation | Add |