Viltrox AF 20mm f/2.8 Air vs Viltrox AF 40mm f/2.5 Air
Both are Nikon Z mount primes for street and budget — 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 Air | Viltrox AF 40mm f/2.5 Air |
|---|---|---|
| Focal length | 20mm | 40mm |
| Max aperture | f/2.8 | f/2.5 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | Nikon Z | Nikon Z |
Which should you buy?
- the Viltrox AF 40mm f/2.5 Air opens wider (f/2.5) — brighter in low light and more background blur
- the Viltrox AF 20mm f/2.8 Air (20mm) is wider — more in the frame for street and interiors; the Viltrox AF 40mm f/2.5 Air (40mm) is tighter — more reach and compression for portraits
Where to buy
Viltrox AF 20mm f/2.8 AirSee price on Amazon
Viltrox AF 40mm f/2.5 AirSee price on Amazon
FAQ
What's the difference between the Viltrox AF 20mm f/2.8 Air and the Viltrox AF 40mm f/2.5 Air?
The Viltrox AF 20mm f/2.8 Air is 20mm f/2.8 prime, full-frame; the Viltrox AF 40mm f/2.5 Air is 40mm f/2.5 prime, full-frame. Both fit the Nikon Z mount.
Which is better in low light, the Viltrox AF 20mm f/2.8 Air or the Viltrox AF 40mm f/2.5 Air?
The Viltrox AF 40mm f/2.5 Air — its f/2.5 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 Air and Viltrox AF 40mm f/2.5 Air fit the same camera?
Yes — both are Nikon Z mount lenses, so they fit Nikon Z series (Z6/Z7/Z8/Z9 full-frame, Z50/Zfc APS-C).
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