Sigma 20mm f/2 DG Contemporary vs Samyang AF 12mm f/2 E
Both are Sony E mount primes for wide-angle and astrophotography — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sigma 20mm f/2 DG Contemporary | Samyang AF 12mm f/2 E |
|---|---|---|
| Focal length | 20mm | 12mm |
| Max aperture | f/2 | f/2 |
| Type | prime | prime |
| Coverage | full-frame | APS-C |
| Mount | Sony E | Sony E |
Which should you buy?
- the Samyang AF 12mm f/2 E (12mm) is wider — more in the frame for street and interiors; the Sigma 20mm f/2 DG Contemporary (20mm) is tighter — more reach and compression for portraits
- the Sigma 20mm f/2 DG Contemporary covers full-frame (also works on APS-C bodies); the Samyang AF 12mm f/2 E is APS-C-only — it won't fill a full-frame sensor
Where to buy
Sigma 20mm f/2 DG ContemporarySee price on Amazon
Samyang AF 12mm f/2 ESee price on Amazon
FAQ
What's the difference between the Sigma 20mm f/2 DG Contemporary and the Samyang AF 12mm f/2 E?
The Sigma 20mm f/2 DG Contemporary is 20mm f/2 prime, full-frame; the Samyang AF 12mm f/2 E is 12mm f/2 prime, APS-C. Both fit the Sony E mount.
Do the Sigma 20mm f/2 DG Contemporary and Samyang AF 12mm f/2 E fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C). Note the Samyang AF 12mm f/2 E is APS-C-only and won't fill a full-frame sensor.
More Sony E comparisons: Sigma 18-50mm f/2.8 DC DN Contemporary vs Sony E 16-55mm f/2.8 G · Sigma 30mm f/1.4 DC DN Contemporary vs Sony FE 35mm f/1.4 GM · Tamron 70-300mm f/4.5-6.3 Di III RXD vs Tamron 50-400mm f/4.5-6.3 Di III VC VXD · Tamron 70-300mm f/4.5-6.3 Di III RXD vs Tamron 50-300mm f/4.5-6.3 Di III VC VXD · all Sony E lenses · all comparisons