Nikon Nikkor Z 28-400mm F4-8 VR vs Tamron 70-300mm f/4.5-6.3 Di III RXD
Both are Nikon Z lenses for full frame. Here is what actually differs.

Pick the Nikon Nikkor Z 28-400mm F4-8 VR if
- You need ⅓ stop more light for low light or background blur (f/4 vs f/4.5)
- You want a wider view: 28mm vs 70mm at the wide end
- You need more reach: 400mm vs 300mm at the long end
- You shoot handheld in dim light or video: it has optical image stabilization and the Tamron 70-300mm f/4.5-6.3 Di III RXD does not
- You shoot close-ups: it focuses down to 0.2 m vs 0.8 m
Pick the Tamron 70-300mm f/4.5-6.3 Di III RXD if
- You want the lighter lens to carry: 145 g lighter (580 g vs 725 g)
Spec differences
16 differences| Nikon Nikkor Z 28-400mm F4-8 VR | Tamron 70-300mm f/4.5-6.3 Di III RXD | |
|---|---|---|
| Brand |
Nikon
|
Tamron
|
| Type |
Superzoom
|
Telephoto Zoom
|
| Focal length |
28-400mm
|
70-300mm
|
| Max aperture |
f/4
⅓ stop faster
|
f/4.5
|
| Weight |
725 g
|
580 g
lighter
|
| Length |
142 mm
shorter
|
150.3 mm
|
| Diameter |
85 mm
|
77 mm
slimmer
|
| Filter thread |
77 mm
|
67 mm
|
| Min focus distance |
0.2 m
closer
|
0.8 m
|
| Max magnification |
0.35×
larger
|
0.2×
|
| Aperture blades |
not listed
|
7
|
| Optical design |
21 elements / 15 groups
|
15 elements / 10 groups
|
| Autofocus motor |
not listed
|
RXD
|
| Image stabilization |
Yes
stabilized
|
No
|
| Weather sealing |
not listed
|
Yes
|
| Released |
2024
|
2022
|
2 identical specs hidden: mount, format. Show all
- Mount
- Nikon Z both
- Format
- Full frame both
More comparisons

Nikon Nikkor Z 100-400mm F4.5-5.6 VR S vs Tamron 70-300mm f/4.5-6.3 Di III RXD
more reach (400mm) vs 855 g lighter
Tamron E 35-150mm f/2-2.8 2.0-2.8 Di III VXD A058Z vs Nikon Nikkor Z 28-400mm F4-8 VR
2 stops faster vs 465 g lighter

Nikon Nikkor Z 24-120mm F4 S vs Tamron 70-300mm f/4.5-6.3 Di III RXD
⅓ stop faster vs 50 g lighter
Nikon Nikkor Z 28-400mm F4-8 VR vs Sigma 16-300mm f/3.5-6.7 DC OS Contemporary
more reach (400mm) 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
Nikon Nikkor Z 14-30mm F4 S vs 28-400mm F4-8 VR
240 g lighter vs more reach (400mm)