Pentax HD Pentax-D FA* 50mm f/1.4 SDM AW vs Pentax smc Pentax-DA 50mm f/1.8
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
- Pentax HD Pentax-D FA* 50mm f/1.4 SDM AW 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 788g.
| Spec | HD Pentax-D FA* 50mm f/1.4 SDM AW | smc Pentax-DA 50mm f/1.8 |
|---|---|---|
| Brand | Pentax | Pentax |
| Mount | Pentax K | Pentax K |
| Type | Prime | Prime |
| Focal length | 50mm | 50mm |
| Max aperture | f/1.4 (faster) | f/1.8 |
| Released | n/a | 2012 |
| Weight g | 910 | 122 (lighter) |
| Filter mm | 72 | 52 |
| Length mm | 106.0 | 38.5 |
| Diameter mm | 80.0 | 63.0 |
| Min focus m | 0.4 (closer focusing) | 0.45 |
| Format | n/a | aps-c |
| Groups | n/a | 5 |
| Elements | n/a | 6 |
| Max magnification | n/a | 0.15 |
Pentax HD Pentax-D FA* 50mm f/1.4 SDM AW
A premium full-frame 50mm f/1.4 from Pentax's Star series. It has SDM autofocus, an all-weather build and weighs about 910 g.
Pros
- f/1.4 aperture
- SDM autofocus
- All-weather build
- Pentax HD coating
Cons
- Heavy at about 910 g
- Large for a 50mm
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