Pentax smc Pentax-DA 50mm f/1.8 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.
Pentax
smc Pentax-DA 50mm f/1.8
Verdict at a glance
- Sigma 50mm f/1.4 DG HSM Art is faster by 0.7 stops (f/1.4 vs f/1.8), letting in more light.
- Pentax smc Pentax-DA 50mm f/1.8 is lighter by 693g.
| Spec | smc Pentax-DA 50mm f/1.8 | 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/1.8 | f/1.4 (faster) |
| Released | 2012 | n/a |
| Format | aps-c | full-frame |
| Groups | 5 | 8 |
| Elements | 6 | 13 |
| Weight g | 122 (lighter) | 815 |
| Filter mm | 52 | 77 |
| Length mm | 38.5 | n/a |
| Diameter mm | 63.0 | n/a |
| Min focus m | 0.45 | 0.4 (closer focusing) |
| Max magnification | 0.15 | 0.18 |
| Blades | n/a | 9 |
| Af motor | n/a | HSM |
Pentax smc Pentax-DA 50mm f/1.8
A light 50mm prime for Pentax APS-C bodies, weighing about 122 g. It takes 52mm filters and focuses as close as 0.45 m.
Pros
- Light at about 122 g
- f/1.8 aperture
- 52mm filters
Cons
- APS-C only
- Plastic build
- Soft wide open
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.