Sigma 10-18mm F2.8 DC DN | Contemporary 023 vs Tamron 12-20mm f/2.8
Both are Sony E wide zoom lenses. Here is what actually differs.
Pick the Sigma 10-18mm F2.8 DC DN | Contemporary 023 if
- You want the lighter lens to carry: 315 g lighter (255 g vs 570 g)
- You want a wider view: 10mm vs 12mm at the wide end
- You shoot close-ups: it focuses down to 0.12 m vs 0.18 m
- You want bigger close-ups: 0.25× vs 0.17× maximum magnification
- You want a compact lens: 64 mm vs 119.3 mm long
- Our notes say it suits: Vlogging, landscape, real estate
Pick the Tamron 12-20mm f/2.8 if
- You need more reach: 20mm vs 18mm at the long end
- You shoot full frame: the Sigma 10-18mm F2.8 DC DN | Contemporary 023 is made for APS-C
- You care about the shape of out-of-focus highlights: 12 aperture blades vs 7
- You prefer a newer design: released 2026 vs 2023
Spec differences
13 differences| Sigma 10-18mm F2.8 DC DN | Contemporary 023 | Tamron 12-20mm f/2.8 | |
|---|---|---|
| Brand |
Sigma
|
Tamron
|
| Format |
APS-C
|
Full frame
|
| Focal length |
10-18mm
|
12-20mm
|
| Weight |
255 g
lighter
|
570 g
|
| Length |
64 mm
shorter
|
119.3 mm
|
| Diameter |
72.2 mm
slimmer
|
90 mm
|
| Filter thread |
67 mm
|
not listed
|
| Min focus distance |
0.12 m
closer
|
0.18 m
|
| Max magnification |
0.25×
larger
|
0.17×
|
| Aperture blades |
7
|
12
more blades
|
| Optical design |
13 elements / 10 groups
|
17 elements / 12 groups
|
| Autofocus motor |
Stepping motor
|
not listed
|
| Released |
2023
|
2026
|
5 identical specs hidden: mount, type, max aperture, image stabilization, weather sealing. Show all
- Mount
- Sony E both
- Type
- Wide Zoom both
- Max aperture
- f/2.8 both
- Image stabilization
- No both
- Weather sealing
- Yes both
Our notes
Sigma 10-18mm F2.8 DC DN | Contemporary 023
A wide-angle f/2.8 zoom for APS-C mirrorless from Sigma's Contemporary line. It weighs about 255 g and focuses as close as 0.116 m.
Pros
- Constant f/2.8
- Compact at about 255 g
- Close focus to 0.116 m
Cons
- Limited zoom range
- No stabilization
Our notes
Tamron 12-20mm f/2.8
More comparisons
Sony FE 12-24mm F2.8 GM vs Sigma 10-18mm F2.8 DC DN | Contemporary 023
more reach (24mm) vs 592 g lighter
Sony FE 12-24mm F2.8 GM vs Tamron 12-20mm f/2.8
more reach (24mm) vs 277 g lighter

Sony FE 16-35mm F2.8 GM vs Sigma 10-18mm F2.8 DC DN | Contemporary 023
more reach (35mm) vs 425 g lighter

Sony FE 16-35mm F2.8 GM vs Tamron 12-20mm f/2.8
more reach (35mm) vs 110 g lighter
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
Tamron 17-70mm F/2.8 Di III-A VC RXD vs Sigma 10-18mm F2.8 DC DN | Contemporary 023
more reach (70mm) vs 270 g lighter