| Attribute | Value |
|---|---|
| Lens Construction | 8 elements in 7 groups |
| Diameter | 64 mm |
| Diagonal Angle of View | 51.30 degree |
| Diaphragm Blades Type | rounded |
| Aperture | 2.80 - 22.00 f |
| Notes | Available AF Mounts: L-Mount, Sony E-Mount |
| Filter Size | 55 mm |
| Magnification Ratio | 0.25 x |
| Closest Focus | 0.24 m |
| Focus Details | Smooth, quiet and high-speed AF via stepping motor |
| Length | 46.2 mm |
| Diaphragm Blades | 7 |
| APS Equivalent | 1.5x: 67.5mm; 1.6x: 72mm |
| Focal Length | 45.00 mm |
| Image Circle | 35mm |
| Brand | Sigma |
| Name | Sigma 45mm f/2.8 DG DN Contemporary |
| Weight | 215 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 |