Tamron 11-20mm F/2.8 Di III-A RXD vs Sony FE 8-14mm F3.5 G
Both are Sony E lenses. Here is what actually differs.
Pick the Tamron 11-20mm F/2.8 Di III-A RXD if
- You need ⅔ stop more light for low light or background blur (f/2.8 vs f/3.5)
- You need more reach: 20mm vs 14mm at the long end
- You want bigger close-ups: 0.25× vs 0.22× maximum magnification
- Our notes say it suits: Landscape, vlogging, interiors
Pick the Sony FE 8-14mm F3.5 G if
- You want the lighter lens to carry: 21 g lighter (314 g vs 335 g)
- You want a wider view: 8mm vs 11mm at the wide end
- You shoot full frame: the Tamron 11-20mm F/2.8 Di III-A RXD is made for APS-C
- You prefer a newer design: released 2026 vs 2021
Spec differences
15 differences| Tamron 11-20mm F/2.8 Di III-A RXD | Sony FE 8-14mm F3.5 G | |
|---|---|---|
| Brand |
Tamron
|
Sony
|
| Type |
Wide Zoom
|
Fisheye
|
| Format |
APS-C
|
Full frame
|
| Focal length |
11-20mm
|
8-14mm
|
| Max aperture |
f/2.8
⅔ stop faster
|
f/3.5
|
| Weight |
335 g
|
314 g
lighter
|
| Length |
86.2 mm
|
82.8 mm
shorter
|
| Diameter |
73 mm
|
63.1 mm
slimmer
|
| Filter thread |
67 mm
|
not listed
|
| Max magnification |
0.25×
larger
|
0.22×
|
| Aperture blades |
7
|
not listed
|
| Optical design |
12 elements / 10 groups
|
not listed
|
| Autofocus motor |
RXD
|
not listed
|
| Weather sealing |
Yes
|
not listed
|
| Released |
2021
|
2026
|
3 identical specs hidden: mount, min focus distance, image stabilization. Show all
- Mount
- Sony E both
- Min focus distance
- 0.15 m both
- Image stabilization
- No both
Our notes
Tamron 11-20mm F/2.8 Di III-A RXD
An APS-C ultra-wide zoom for Sony E with a constant f/2.8 aperture, giving about 16.5-30mm equivalent. It uses a 67mm filter thread.
Pros
- Constant f/2.8
- Compact
- Takes screw-in filters
Cons
- APS-C only
- No stabilization
Our notes
Sony FE 8-14mm F3.5 G
More comparisons
Sony FE 12-24mm F2.8 GM vs Tamron 11-20mm F/2.8 Di III-A RXD
more reach (24mm) vs 512 g lighter
Sony FE 16-35mm F2.8 GM vs Tamron 11-20mm F/2.8 Di III-A RXD
more reach (35mm) vs 345 g lighter
Sigma 10-18mm F2.8 DC DN | Contemporary 023 vs Sony FE 8-14mm F3.5 G
⅔ stop faster vs wider (8mm)
Tamron 11-20mm F/2.8 Di III-A RXD vs Sigma 10-18mm F2.8 DC DN | Contemporary 023
more reach (20mm) vs 80 g lighter
Sigma 14-24mm F2.8 DG DN | Art 019 vs Sony FE 8-14mm F3.5 G
⅔ stop faster vs 481 g lighter
Tamron 11-20mm F/2.8 Di III-A RXD vs Sigma 14-24mm F2.8 DG DN | Art 019
460 g lighter vs more reach (24mm)