Viltrox AF 20mm f/2.8 vs Samyang AF 45mm f/1.8 FE
Both are Sony E mount primes for travel and compact — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Viltrox AF 20mm f/2.8 | Samyang AF 45mm f/1.8 FE |
|---|---|---|
| Focal length | 20mm | 45mm |
| Max aperture | f/2.8 | f/1.8 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Samyang AF 45mm f/1.8 FE opens wider (f/1.8) — brighter in low light and more background blur
- the Viltrox AF 20mm f/2.8 (20mm) is wider — more in the frame for street and interiors; the Samyang AF 45mm f/1.8 FE (45mm) is tighter — more reach and compression for portraits
Where to buy
Viltrox AF 20mm f/2.8See price on Amazon
Samyang AF 45mm f/1.8 FESee price on Amazon
FAQ
What's the difference between the Viltrox AF 20mm f/2.8 and the Samyang AF 45mm f/1.8 FE?
The Viltrox AF 20mm f/2.8 is 20mm f/2.8 prime, full-frame; the Samyang AF 45mm f/1.8 FE is 45mm f/1.8 prime, full-frame. Both fit the Sony E mount.
Which is better in low light, the Viltrox AF 20mm f/2.8 or the Samyang AF 45mm f/1.8 FE?
The Samyang AF 45mm f/1.8 FE — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2.8 of the other.
Do the Viltrox AF 20mm f/2.8 and Samyang AF 45mm f/1.8 FE 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).
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 · Viltrox AF 50mm f/2.0 vs Laowa Argus 35mm f/0.95 FF · Viltrox AF 50mm f/2.0 vs Zeiss Batis 40mm f/2 CF · all Sony E lenses · all comparisons