| Name |
Sigma 20mm f/2 DG DN Contemporary |
| Image Circle |
35mm |
| Type |
Wide Prime |
| Focal Length |
20mm |
| APS Equivalent |
1.5x: 30mm |
| Max Aperture |
f/2 |
| Min Aperture |
f/22 |
| Diaphragm Blades |
9 (rounded) |
| Lens Construction |
13 elements in 11 groups, with 1 FLD, 1 SLD and 3 aspherical lens elements |
| Diagonal Angle of View(Based on image circle) |
94.5 degrees |
| Focus Details |
Smooth, quiet and high-speed AF via stepping motor |
| Front Element Rotation |
No |
| Zoom System |
n/a |
| Closest Focus |
22cm / 8.7in |
| Magnification Ratio |
1:6.7 |
| Filter Size |
62mm |
| Dimensions(Length x Diameter) |
72.4mm x 70mm / 2.9 in. x 2.8 in. |
| Weight |
370g / 13.1 oz. |
| Notes |
Available AF Mounts: L-Mount, Sony E-Mount |
| Typical Online Price |
US$699.99 |