
Sigma 100-400mm f/5-6.3 DG DN OS Contemporary vs Tamron 28-300mm f/4-7.1 Di III VC VXD
Both are Sony E lenses for full frame. Here is what actually differs.

Pick the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary if
- You need more reach: 400mm vs 300mm at the long end
Pick the Tamron 28-300mm f/4-7.1 Di III VC VXD if
- You need ⅔ stop more light for low light or background blur (f/4 vs f/5)
- You want the lighter lens to carry: 530 g lighter (610 g vs 1140 g)
- You want a wider view: 28mm vs 100mm at the wide end
- You want bigger close-ups: 0.36× vs 0.24× maximum magnification
- You want a compact lens: 126 mm vs 199.2 mm long
Spec differences
12 differences| Sigma 100-400mm f/5-6.3 DG DN OS Contemporary | Tamron 28-300mm f/4-7.1 Di III VC VXD | |
|---|---|---|
| Brand |
Sigma
|
Tamron
|
| Type |
Telephoto Zoom
|
Superzoom
|
| Focal length |
100-400mm
|
28-300mm
|
| Max aperture |
f/5
|
f/4
⅔ stop faster
|
| Weight |
1140 g
|
610 g
lighter
|
| Length |
199.2 mm
|
126 mm
shorter
|
| Diameter |
86 mm
|
77 mm
slimmer
|
| Min focus distance |
not listed
|
0.19 m
|
| Max magnification |
0.24×
|
0.36×
larger
|
| Optical design |
22 elements / 16 groups
|
20 elements / 13 groups
|
| Autofocus motor |
not listed
|
VXD
|
| Released |
2020
|
2024
|
6 identical specs hidden: mount, format, filter thread, aperture blades, image stabilization, weather sealing. Show all
- Mount
- Sony E both
- Format
- Full frame both
- Filter thread
- 67 mm both
- Aperture blades
- 9 both
- Image stabilization
- Yes both
- Weather sealing
- Yes both
More comparisons

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more reach (500mm) vs 585 g lighter
Sony FE PZ 16-35mm F4 G vs Tamron 28-300mm f/4-7.1 Di III VC VXD
257 g lighter vs more reach (300mm)


Sony E 55-210mm F4.5-6.3 OSS vs Sigma 100-400mm f/5-6.3 DG DN OS Contemporary
⅓ stop faster vs more reach (400mm)
Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS vs Tamron 28-300mm f/4-7.1 Di III VC VXD
92 g lighter vs more reach (300mm)

Sony E 70-350mm F4.5-6.3 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)