Tamron 17-70mm F2.8 B070 Z/RF/X/E vs Sigma 16-300mm f/3.5-6.7 DC OS Contemporary
Both are Nikon Z lenses for APS-C. Here is what actually differs.
Pick the Tamron 17-70mm F2.8 B070 Z/RF/X/E if
- You need ⅔ stop more light for low light or background blur (f/2.8 vs f/3.5)
- You prefer a newer design: released 2026 vs 2025
Pick the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary if
- You want a wider view: 16mm vs 17mm at the wide end
- You need more reach: 300mm vs 70mm at the long end
- You want bigger close-ups: 0.5× vs 0.21× maximum magnification
Spec differences
12 differences| Tamron 17-70mm F2.8 B070 Z/RF/X/E | Sigma 16-300mm f/3.5-6.7 DC OS Contemporary | |
|---|---|---|
| Brand |
Tamron
|
Sigma
|
| Type |
Zoom
|
Superzoom
|
| Focal length |
17-70mm
|
16-300mm
|
| Max aperture |
f/2.8
⅔ stop faster
|
f/3.5
|
| Weight |
not listed
|
630 g
|
| Length |
not listed
|
125.4 mm
|
| Diameter |
74.6 mm
|
73.8 mm
|
| Min focus distance |
0.19 m
|
not listed
|
| Max magnification |
0.21×
|
0.5×
larger
|
| Optical design |
16 elements / 12 groups
|
20 elements / 14 groups
|
| Autofocus motor |
RXD
|
Linear motor
|
| Released |
2026
|
2025
|
6 identical specs hidden: mount, format, filter thread, aperture blades, image stabilization, weather sealing. Show all
- Mount
- Nikon Z both
- Format
- APS-C both
- Filter thread
- 67 mm both
- Aperture blades
- 9 both
- Image stabilization
- Yes both
- Weather sealing
- Yes both
Our notes
Tamron 17-70mm F2.8 B070 Z/RF/X/E
Tamron 17-70mm F2.8 B070 Z/RF/X/E: a fast standard zoom lens with a 17-70mm focal length and a maximum aperture of f/2.8, made for Nikon Z mount cameras. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.
Our notes
Sigma 16-300mm f/3.5-6.7 DC OS Contemporary
More comparisons
Nikon Nikkor Z DX 16-50mm f/2.8 VR vs Tamron 17-70mm F2.8 B070 Z/RF/X/E
wider (16mm) vs more reach (70mm)
Nikon Nikkor Z DX 16-50mm F3.5-6.3 VR vs Sigma 16-300mm f/3.5-6.7 DC OS Contemporary
495 g lighter vs more reach (300mm)
Nikon Nikkor Z 24-70mm F2.8 S vs Tamron 17-70mm F2.8 B070 Z/RF/X/E
covers full frame vs wider (17mm)
Nikon Nikkor Z 14-30mm F4 S vs Sigma 16-300mm f/3.5-6.7 DC OS Contemporary
145 g lighter vs ⅓ stop faster
Sigma 16-300mm f/3.5-6.7 DC OS Contemporary vs Tamron 70-300mm f/4.5-6.3 Di III RXD
⅔ stop faster vs 50 g lighter
Tamron 17-70mm F2.8 B070 Z/RF/X/E vs Laowa 10-18mm f/4.5-5.6 FE Zoom
1⅓ stops faster vs wider (10mm)