Viltrox AF 20mm f/2.8 vs Samyang AF 45mm f/1.8 FE
Both are Sony E mount primes for travel and small-footprint — 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
Check the Viltrox AF 20mm f/2.8 price on Amazon →
Check the Samyang AF 45mm f/1.8 FE 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).
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