Tamron 24mm f/2.8 Di III OSD M1:2 vs 7Artisans AF 18mm f/2 (APS-C)
Both are Sony E mount primes for wide-angle and street — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Tamron 24mm f/2.8 Di III OSD M1:2 | 7Artisans AF 18mm f/2 (APS-C) |
|---|---|---|
| Focal length | 24mm | 18mm |
| Max aperture | f/2.8 | f/2 |
| Type | prime | prime |
| Coverage | full-frame | APS-C |
| Mount | Sony E | Sony E |
Which should you buy?
- the 7Artisans AF 18mm f/2 (APS-C) opens wider (f/2) — brighter in low light and more background blur
- the 7Artisans AF 18mm f/2 (APS-C) (18mm) is wider — more in the frame for street and interiors; the Tamron 24mm f/2.8 Di III OSD M1:2 (24mm) is tighter — more reach and compression for portraits
- the Tamron 24mm f/2.8 Di III OSD M1:2 covers full-frame (also works on APS-C bodies); the 7Artisans AF 18mm f/2 (APS-C) is APS-C-only — it won't fill a full-frame sensor
Where to buy
Tamron 24mm f/2.8 Di III OSD M1:2See price on Amazon
7Artisans AF 18mm f/2 (APS-C)See price on Amazon
FAQ
What's the difference between the Tamron 24mm f/2.8 Di III OSD M1:2 and the 7Artisans AF 18mm f/2 (APS-C)?
The Tamron 24mm f/2.8 Di III OSD M1:2 is 24mm f/2.8 prime, full-frame; the 7Artisans AF 18mm f/2 (APS-C) is 18mm f/2 prime, APS-C. Both fit the Sony E mount.
Which is better in low light, the Tamron 24mm f/2.8 Di III OSD M1:2 or the 7Artisans AF 18mm f/2 (APS-C)?
The 7Artisans AF 18mm f/2 (APS-C) — its f/2 maximum aperture lets in more light and gives more background blur than the f/2.8 of the other.
Do the Tamron 24mm f/2.8 Di III OSD M1:2 and 7Artisans AF 18mm f/2 (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 18mm f/2 (APS-C) is APS-C-only and won't fill a full-frame sensor.
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