Rokinon 14mm f/2.8 ED AS IF UMC vs Sigma 14mm f/1.8 DG HSM Art
Both are Pentax K prime lenses for full frame. Here is what actually differs.
Pick the Rokinon 14mm f/2.8 ED AS IF UMC if
- You want a compact lens: 94.6 mm vs 126 mm long
Pick the Sigma 14mm f/1.8 DG HSM Art if
- You need 1⅓ stops more light for low light or background blur (f/1.8 vs f/2.8)
- You want autofocus (HSM): the Rokinon 14mm f/2.8 ED AS IF UMC is manual focus only
Spec differences
11 differences| Rokinon 14mm f/2.8 ED AS IF UMC | Sigma 14mm f/1.8 DG HSM Art | |
|---|---|---|
| Brand |
Rokinon
|
Sigma
|
| Max aperture |
f/2.8
|
f/1.8
1⅓ stops faster
|
| Weight |
530 g
|
not listed
|
| Length |
94.6 mm
shorter
|
126 mm
|
| Diameter |
87 mm
slimmer
|
95.4 mm
|
| Min focus distance |
0.28 m
|
0.27 m
closer
|
| Max magnification |
not listed
|
0.1×
|
| Aperture blades |
not listed
|
9
|
| Optical design |
14 elements / 10 groups
|
16 elements / 11 groups
|
| Autofocus motor |
Manual focus
|
HSM
|
| Released |
not listed
|
2017
|
5 identical specs hidden: mount, type, format, focal length, image stabilization. Show all
- Mount
- Pentax K both
- Type
- Prime both
- Format
- Full frame both
- Focal length
- 14mm both
- Image stabilization
- No both
Our notes
Rokinon 14mm f/2.8 ED AS IF UMC
The Rokinon 14mm f/2.8 ED AS IF UMC is a wide-angle prime lens covering 14mm at f/2.8 for Pentax K mount cameras, with extra-low dispersion glass and aspherical elements. A manual-focus ultra-wide prime well known for landscape and astro photography at a modest price.
Our notes
Sigma 14mm f/1.8 DG HSM Art
The Sigma 14mm f/1.8 DG HSM Art is a full-frame fast wide-angle prime lens covering 14mm at f/1.8 for Pentax K 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...
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shorter vs 1⅓ stops faster
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Sigma 14mm f/1.8 DG HSM Art: ⅔ stop faster
Pentax smc PENTAX-DA 14mm F2.8 ED[IF] vs Rokinon 14mm f/2.8 ED AS IF UMC
110 g lighter vs covers full frame
Pentax smc PENTAX-DA 14mm F2.8 ED[IF] vs Sigma 14mm f/1.8 DG HSM Art
focuses closer vs 1⅓ stops faster