Sony E PZ 10-20mm f/4 G vs Tamron 11-20mm f/2.8 Di III-A RXD
Sony E PZ 10-20mm f/4 G has more in its favour on paper. The 11-20mm f/2.8 Di III-A RXD gathers more light for low light and background blur; the E PZ 10-20mm f/4 G is lighter and the alternative. The Sony lens is the mount maker's own, while the Tamron is a third-party alternative.
Choose the E PZ 10-20mm f/4 G for
- less weight (178g vs 335g)
- a wider starting focal length (10mm vs 11mm)
Choose the 11-20mm f/2.8 Di III-A RXD for
- a brighter maximum aperture (f/2.8, about 1.0 stops more light)
- a lower price (about £370 vs £649)
| E PZ 10-20mm f/4 G | 11-20mm f/2.8 Di III-A RXD | |
|---|---|---|
| Brand | Sony | Tamron |
| Focal length | 10-20mm | 11-20mm |
| Maximum aperture | f/4 | f/2.8 |
| Weight | 178 g | 335 g |
| Stabilisation | No | No |
| Weather sealing | Yes | Yes |
| Filter size | 62mm | 67mm |
| Made for | APSC | APSC |
| New price | £649 | £599 |
| Used at MPB (Sony E / FE) | None listed | £339–£394 |
More lens comparisons
See all Sony E / FE cameras and lenses.
Frequently asked questions
Is the Sony E PZ 10-20mm f/4 G better than the Tamron 11-20mm f/2.8 Di III-A RXD?
The E PZ 10-20mm f/4 G offers less weight (178g vs 335g), a wider starting focal length (10mm vs 11mm); the 11-20mm f/2.8 Di III-A RXD offers a brighter maximum aperture (f/2.8, about 1.0 stops more light), a lower price (about £370 vs £649).
Which is better value, the E PZ 10-20mm f/4 G or the 11-20mm f/2.8 Di III-A RXD?
On Sony E / FE, the Tamron 11-20mm f/2.8 Di III-A RXD costs about £370 against about £649 for the Sony E PZ 10-20mm f/4 G (MPB used where listed, otherwise new; checked 5 November 2026).
Is f/2.8 worth it over f/4?
f/2.8 gathers about 1.0 stops more light, which helps indoors, at night and for background blur. If you mostly shoot in good light, the slower lens is usually lighter and cheaper.
Do both lenses fit the same cameras?
Both are available for Sony E / FE (and other mounts: Fujifilm X, Canon RF / RF-S). Both are made for crop sensors.