Pentax smc Pentax-A 50mm f/1.7 vs Sigma 50mm f/1.4 DG HSM Art
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sigma 50mm f/1.4 DG HSM Art is faster by 0.6 stops (f/1.4 vs f/1.7), letting in more light.
| Spec | smc Pentax-A 50mm f/1.7 | 50mm f/1.4 DG HSM Art |
|---|---|---|
| Brand | Pentax | Sigma |
| Mount | Pentax K | Pentax K |
| Type | Prime | Prime |
| Focal length | 50mm | 50mm |
| Max aperture | f/1.7 | f/1.4 (faster) |
| Blades | n/a | 9 |
| Format | n/a | full-frame |
| Groups | n/a | 8 |
| Af motor | n/a | HSM |
| Elements | n/a | 13 |
| Weight g | n/a | 815 |
| Filter mm | n/a | 77 |
| Min focus m | n/a | 0.4 |
| Max magnification | n/a | 0.18 |
Pentax smc Pentax-A 50mm f/1.7
The Pentax smc Pentax-A 50mm f/1.7 is a fast standard prime lens covering 50mm at f/1.7 for Pentax K mount cameras. The natural field of view suits street, documentary and everyday photography.
Sigma 50mm f/1.4 DG HSM Art
This 50mm f/1.4 full-frame fast standard prime lens from Sigma fits Pentax K mount cameras, from the Sigma Art line with Hyper Sonic Motor autofocus. A wide-aperture standard prime from Sigma's Art line.