Pentax smc DA 40mm F2.8 Limited vs Sigma 40mm 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 40mm f/1.4 DG HSM Art is faster by 2 stops (f/1.4 vs f/2.8), letting in more light.
| Spec | smc DA 40mm F2.8 Limited | 40mm f/1.4 DG HSM Art |
|---|---|---|
| Brand | Pentax | Sigma |
| Mount | Pentax K | Pentax K |
| Type | Prime | Prime |
| Focal length | 40mm | 40mm |
| Max aperture | f/2.8 | f/1.4 (faster) |
| Format | aps-c | full-frame |
| Weight g | 90 | n/a |
| Filter mm | 49 | 82 |
| Length mm | 15.0 | 131.0 |
| Diameter mm | 63.0 | 87.8 |
| Min focus m | 0.4 | 0.4 |
| Blades | n/a | 9 |
| Groups | n/a | 12 |
| Af motor | n/a | HSM |
| Elements | n/a | 16 |
| Max magnification | n/a | 0.15 |
Pentax smc DA 40mm F2.8 Limited
A tiny metal-bodied pancake lens for Pentax APS-C bodies, weighing about 90 g. It is 15 mm long and takes 49mm filters.
Pros
- Very small at about 90 g
- Metal build
- Natural normal view on APS-C
- Sharp
Cons
- APS-C only
- f/2.8 is not fast
- No weather sealing
Sigma 40mm f/1.4 DG HSM Art
This 40mm 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. The natural field of view suits street, documentary and everyday photography.