Viltrox AF 40mm f/2.5 vs 7Artisans AF 27mm f/2.8 (APS-C)
Both are Sony E mount primes for everyday and compact — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Viltrox AF 40mm f/2.5 | 7Artisans AF 27mm f/2.8 (APS-C) |
|---|---|---|
| Focal length | 40mm | 27mm |
| Max aperture | f/2.5 | f/2.8 |
| Type | prime | prime |
| Coverage | full-frame | APS-C |
| Mount | Sony E | Sony E |
Which should you buy?
- the Viltrox AF 40mm f/2.5 opens wider (f/2.5) — brighter in low light and more background blur
- the 7Artisans AF 27mm f/2.8 (APS-C) (27mm) is wider — more in the frame for street and interiors; the Viltrox AF 40mm f/2.5 (40mm) is tighter — more reach and compression for portraits
- the Viltrox AF 40mm f/2.5 covers full-frame (also works on APS-C bodies); the 7Artisans AF 27mm f/2.8 (APS-C) is APS-C-only — it won't fill a full-frame sensor
Where to buy
Viltrox AF 40mm f/2.5See price on Amazon
7Artisans AF 27mm f/2.8 (APS-C)See price on Amazon
FAQ
What's the difference between the Viltrox AF 40mm f/2.5 and the 7Artisans AF 27mm f/2.8 (APS-C)?
The Viltrox AF 40mm f/2.5 is 40mm f/2.5 prime, full-frame; the 7Artisans AF 27mm f/2.8 (APS-C) is 27mm f/2.8 prime, APS-C. Both fit the Sony E mount.
Which is better in low light, the Viltrox AF 40mm f/2.5 or the 7Artisans AF 27mm f/2.8 (APS-C)?
The Viltrox AF 40mm f/2.5 — 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 40mm f/2.5 and 7Artisans AF 27mm f/2.8 (APS-C) 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 7Artisans AF 27mm f/2.8 (APS-C) is APS-C-only and won't fill a full-frame sensor.
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