Sigma 20mm f/1.8 EX DG vs Sigma 20mm f/1.4 DG HSM Art
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Sigma
20mm f/1.4 DG HSM Art
Verdict at a glance
- Sigma 20mm f/1.4 DG HSM Art is faster by 0.7 stops (f/1.4 vs f/1.8), letting in more light.
| Spec | 20mm f/1.8 EX DG | 20mm f/1.4 DG HSM Art |
|---|---|---|
| Brand | Sigma | Sigma |
| Mount | Sigma SA | Sigma SA |
| Type | Prime | Prime |
| Focal length | 20mm | 20mm |
| Max aperture | f/1.8 | f/1.4 (faster) |
| Blades | n/a | 9 |
| Format | n/a | full-frame |
| Groups | n/a | 11 |
| Af motor | n/a | HSM |
| Elements | n/a | 15 |
| Weight g | n/a | 950 |
| Length mm | n/a | 129.8 |
| Diameter mm | n/a | 90.7 |
| Min focus m | n/a | 0.276 |
| Max magnification | n/a | 0.14 |
Sigma 20mm f/1.8 EX DG
Sigma 20mm f/1.8 EX DG: a full-frame fast wide-angle prime lens with a 20mm focal length and a maximum aperture of f/1.8, made for Sigma SA mount cameras. The wide view suits landscapes, architecture and environmental shots.
Sigma 20mm f/1.4 DG HSM Art
The Sigma 20mm f/1.4 DG HSM Art is a full-frame fast wide-angle prime lens covering 20mm at f/1.4 for Sigma SA mount cameras, from the Sigma Art line with Hyper Sonic Motor autofocus. A wide-aperture wide-angle prime from Sigma's Art line, popular for astrophotography and land...