Sigma 16-28mm f/2.8 DG DN Contemporary vs Tamron 50-400mm f/4.5-6.3 Di III VC VXD
The bottom line
These cover different focal lengths — the Sigma 16-28mm f/2.8 DG DN Contemporary is 16-28mm, the Tamron 50-400mm f/4.5-6.3 Di III VC VXD is 50-400mm — so they're not really substitutes. Pick by the field of view you actually need: the Sigma 16-28mm f/2.8 DG DN Contemporary for wide-angle, the Tamron 50-400mm f/4.5-6.3 Di III VC VXD for super-telephoto.
Choose the Sigma 16-28mm f/2.8 DG DN Contemporary if…
- ✓You want more light and background blur — f/2.8 is faster than f/4.5, better for low light and subject separation.
- ✓You shoot wide — it starts at 16mm vs 50mm for landscapes, interiors and architecture.
- ✓You value portability — at 405g (14.3 oz) it's lighter than the 1130g (2.49 lb) alternative for travel and all-day carry.
Choose the Tamron 50-400mm f/4.5-6.3 Di III VC VXD if…
- ✓You need more reach — it goes to 400mm vs 28mm for distant subjects, wildlife and sport.
- ✓You shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
- ✓You like close-focus work — 0.28x magnification vs 0.19x.
Where they differ
- ›Aperture: the Sigma 16-28mm f/2.8 DG DN Contemporary opens to f/2.8 vs the Tamron 50-400mm f/4.5-6.3 Di III VC VXD's f/4.5 — more light and shallower depth-of-field.
- ›Focal range: Sigma 16-28mm f/2.8 DG DN Contemporary is 16-28mm, Tamron 50-400mm f/4.5-6.3 Di III VC VXD is 50-400mm — different framing and reach.
- ›Stabilisation: only the Tamron 50-400mm f/4.5-6.3 Di III VC VXD has optical stabilisation — steadier handheld shots, especially on bodies without IBIS.
- ›Weight: the Sigma 16-28mm f/2.8 DG DN Contemporary is 405g (14.3 oz) vs 1130g (2.49 lb) — you'll feel the difference handheld.
Frequently asked
Is the Sigma 16-28mm f/2.8 DG DN Contemporary or the Tamron 50-400mm f/4.5-6.3 Di III VC VXD better?
These cover different focal lengths — the Sigma 16-28mm f/2.8 DG DN Contemporary is 16-28mm, the Tamron 50-400mm f/4.5-6.3 Di III VC VXD is 50-400mm — so they're not really substitutes. Pick by the field of view you actually need: the Sigma 16-28mm f/2.8 DG DN Contemporary for wide-angle, the Tamron 50-400mm f/4.5-6.3 Di III VC VXD for super-telephoto.
Who should choose the Sigma 16-28mm f/2.8 DG DN Contemporary?
Choose the Sigma 16-28mm f/2.8 DG DN Contemporary if you want more light and background blur — f/2.8 is faster than f/4.5, better for low light and subject separation. Choose it if you shoot wide — it starts at 16mm vs 50mm for landscapes, interiors and architecture. Choose it if you value portability — at 405g (14.3 oz) it's lighter than the 1130g (2.49 lb) alternative for travel and all-day carry.
Who should choose the Tamron 50-400mm f/4.5-6.3 Di III VC VXD?
Choose the Tamron 50-400mm f/4.5-6.3 Di III VC VXD if you need more reach — it goes to 400mm vs 28mm for distant subjects, wildlife and sport. Choose it if you shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't. Choose it if you like close-focus work — 0.28x magnification vs 0.19x.
What is the main difference between the Sigma 16-28mm f/2.8 DG DN Contemporary and the Tamron 50-400mm f/4.5-6.3 Di III VC VXD?
Aperture: the Sigma 16-28mm f/2.8 DG DN Contemporary opens to f/2.8 vs the Tamron 50-400mm f/4.5-6.3 Di III VC VXD's f/4.5 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 16-28mm | 50-400mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 13 | 22 |
| Optical Groups | 11 | 16 |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/4.5 |
| Minimum Aperture | f/22 | f/32 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 107° – 75° | 47° – 6° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | VXD |
| Focus Limiter | No | Yes |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 25 cm | 72 cm |
| Max Magnification | 0.19x | 0.28x |
| Stabilization & Video | ||
| Optical Stabilization | No | Yes |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $899 | $849 |
| Filter Size | 72mm | 82mm |
| Diameter | 77.2mm | 88.2mm |
| Length | 100.6mm | 183.4mm |
| Weight | 405g (14.3 oz) | 1130g (2.49 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | Yes |
