Sigma 10-18mm f/2.8 DC DN Contemporary vs Tamron 17-70mm f/2.8 Di III-A VC RXD
Both are Canon RF lenses for APS-C. Here is what actually differs.
Pick the Sigma 10-18mm f/2.8 DC DN Contemporary if
- You want a wider view: 10mm vs 17mm at the wide end
- You want bigger close-ups: 0.25× vs 0.21× maximum magnification
Pick the Tamron 17-70mm f/2.8 Di III-A VC RXD if
- You need more reach: 70mm vs 18mm at the long end
- You shoot handheld in dim light or video: it has optical image stabilization and the Sigma 10-18mm f/2.8 DC DN Contemporary does not
- You care about the shape of out-of-focus highlights: 9 aperture blades vs 7
- You prefer a newer design: released 2026 vs 2023
Spec differences
13 differences| Sigma 10-18mm f/2.8 DC DN Contemporary | Tamron 17-70mm f/2.8 Di III-A VC RXD | |
|---|---|---|
| Brand |
Sigma
|
Tamron
|
| Type |
Wide Zoom
|
Zoom
|
| Focal length |
10-18mm
|
17-70mm
|
| Weight |
270 g
|
not listed
|
| Length |
62 mm
|
not listed
|
| Diameter |
72.2 mm
slimmer
|
74.6 mm
|
| Min focus distance |
not listed
|
0.19 m
|
| Max magnification |
0.25×
larger
|
0.21×
|
| Aperture blades |
7
|
9
more blades
|
| Optical design |
13 elements / 10 groups
|
16 elements / 12 groups
|
| Autofocus motor |
Stepping motor
|
RXD
|
| Image stabilization |
No
|
Yes
stabilized
|
| Released |
2023
|
2026
|
5 identical specs hidden: mount, format, max aperture, filter thread, weather sealing. Show all
- Mount
- Canon RF both
- Format
- APS-C both
- Max aperture
- f/2.8 both
- Filter thread
- 67 mm both
- Weather sealing
- Yes both
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Laowa 8-15mm f/2.8 FF Zoom Fisheye vs Sigma 10-18mm f/2.8 DC DN Contemporary
wider (8mm) vs more reach (18mm)
Sigma 18-50mm f/2.8 DC DN Contemporary vs Tamron 17-70mm f/2.8 Di III-A VC RXD
0.36× magnification vs wider (17mm)