Sony FE 70-300mm F4.5-5.6 G OSS vs Tamron 50-400mm F4.5-6.3 Di III VC VXD
Both are Sony E lenses for full frame. Here is what actually differs.
Pick the Sony FE 70-300mm F4.5-5.6 G OSS if
- You want the lighter lens to carry: 301 g lighter (854 g vs 1155 g)
- You want a compact lens: 143.5 mm vs 183 mm long
- Our notes say it suits: Wildlife at moderate distance, sports in good light
Pick the Tamron 50-400mm F4.5-6.3 Di III VC VXD if
- You want a wider view: 50mm vs 70mm at the wide end
- You need more reach: 400mm vs 300mm at the long end
- You shoot close-ups: it focuses down to 0.25 m vs 0.9 m
- You want bigger close-ups: 0.5× vs 0.31× maximum magnification
- You prefer a newer design: released 2022 vs 2016
- Our notes say it suits: Wildlife, sports
Spec differences
14 differences| Sony FE 70-300mm F4.5-5.6 G OSS | Tamron 50-400mm F4.5-6.3 Di III VC VXD | |
|---|---|---|
| Brand |
Sony
|
Tamron
|
| Type |
Telephoto Zoom
|
Zoom
|
| Focal length |
70-300mm
|
50-400mm
|
| Weight |
854 g
lighter
|
1155 g
|
| Length |
143.5 mm
shorter
|
183 mm
|
| Diameter |
84 mm
slimmer
|
89 mm
|
| Filter thread |
72 mm
|
67 mm
|
| Min focus distance |
0.9 m
|
0.25 m
closer
|
| Max magnification |
0.31×
|
0.5×
larger
|
| Aperture blades |
not listed
|
9
|
| Optical design |
not listed
|
24 elements / 18 groups
|
| Autofocus motor |
not listed
|
VXD
|
| Weather sealing |
not listed
|
Yes
|
| Released |
2016
|
2022
|
4 identical specs hidden: mount, format, max aperture, image stabilization. Show all
- Mount
- Sony E both
- Format
- Full frame both
- Max aperture
- f/4.5 both
- Image stabilization
- Yes both
Our notes
Sony FE 70-300mm F4.5-5.6 G OSS
A telephoto zoom for full-frame E-mount covering 70-300mm with Optical SteadyShot and a dust and moisture resistant design.
Pros
- Long reach at modest size
- Optical SteadyShot
- Dust and moisture resistant design
Cons
- Aperture narrows to f/5.6 at 300mm
- Not suited to dim light
Our notes
Tamron 50-400mm F4.5-6.3 Di III VC VXD
Full-frame telephoto zoom for Sony with VC stabilization covering 50-400mm. It reaches 400mm without the weight of a 150-600mm.
Pros
- 8x range
- VC stabilization
- Lighter than 150-600mm lenses at about 1,155 g
Cons
- Slow variable aperture
- Heavier than short telephotos
More comparisons

Sony E 55-210mm F4.5-6.3 OSS vs Tamron 50-400mm F4.5-6.3 Di III VC VXD
810 g lighter vs wider (50mm)
Sony FE 70-300mm F4.5-5.6 G OSS vs Tamron 70-300mm F/4.5-6.3 Di III RXD
stabilized vs 309 g lighter
Sony E 70-350mm F4.5-6.3 G OSS vs Tamron 50-400mm F4.5-6.3 Di III VC VXD
530 g lighter vs wider (50mm)

Sony FE 70-300mm F4.5-5.6 G OSS vs Sigma 100-400mm f/5-6.3 DG DN OS Contemporary
⅓ stop faster vs more reach (400mm)

Tamron 50-400mm F4.5-6.3 Di III VC VXD vs Sigma 100-400mm f/5-6.3 DG DN OS Contemporary
Tamron 50-400mm F4.5-6.3 Di III VC VXD: ⅓ stop faster, wider (50mm)

Sony FE 70-300mm F4.5-5.6 G OSS vs Sigma 150-600mm f/5-6.3 DG DN OS Sports
⅓ stop faster vs more reach (600mm)