Sony E 10-20mm f/4 PZ G vs Tamron 20-40mm f/2.8 Di III VXD
Both are Sony E mount zooms for wide-angle and vlogging — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony E 10-20mm f/4 PZ G | Tamron 20-40mm f/2.8 Di III VXD |
|---|---|---|
| Focal length | 10-20mm | 20-40mm |
| Max aperture | f/4 | f/2.8 |
| Type | zoom | zoom |
| Coverage | APS-C | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Tamron 20-40mm f/2.8 Di III VXD opens wider (f/2.8) — brighter in low light and more background blur
- the Sony E 10-20mm f/4 PZ G covers 10-20mm and the Tamron 20-40mm f/2.8 Di III VXD covers 20-40mm — pick the range that matches what you shoot
- the Tamron 20-40mm f/2.8 Di III VXD covers full-frame (also works on APS-C bodies); the Sony E 10-20mm f/4 PZ G is APS-C-only — it won't fill a full-frame sensor
- the Sony E 10-20mm f/4 PZ G is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Tamron 20-40mm f/2.8 Di III VXD is third-party — usually the value pick
Where to buy
Check the Sony E 10-20mm f/4 PZ G price on Amazon →
Check the Tamron 20-40mm f/2.8 Di III VXD price on Amazon →
FAQ
What's the difference between the Sony E 10-20mm f/4 PZ G and the Tamron 20-40mm f/2.8 Di III VXD?
The Sony E 10-20mm f/4 PZ G is 10-20mm f/4 zoom, APS-C; the Tamron 20-40mm f/2.8 Di III VXD is 20-40mm f/2.8 zoom, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony E 10-20mm f/4 PZ G or the Tamron 20-40mm f/2.8 Di III VXD?
The Tamron 20-40mm f/2.8 Di III VXD — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/4 of the other.
Do the Sony E 10-20mm f/4 PZ G and Tamron 20-40mm f/2.8 Di III VXD 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 Sony E 10-20mm f/4 PZ G is APS-C-only and won't fill a full-frame sensor.
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