Sigma 16-300mm F3.5-6.7 DC OS | Contemporary vs Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD
Every published spec side by side, with today's lowest prices for the market you've chosen.
Key differences
- Maximum aperture: f/3.5–6.3 on the 18-300mm F/3.5-6.3 Di III-A VC VXD, against f/3.5–6.7 on the 16-300mm F3.5-6.7 DC OS | Contemporary.
- Aperture blades: 9 on the 16-300mm F3.5-6.7 DC OS | Contemporary, against 7 on the 18-300mm F/3.5-6.3 Di III-A VC VXD.
- Closest focus: 0.15 m on the 18-300mm F/3.5-6.3 Di III-A VC VXD, against 0.17 m on the 16-300mm F3.5-6.7 DC OS | Contemporary.
- Weight: 615 g on the 16-300mm F3.5-6.7 DC OS | Contemporary, against 620 g on the 18-300mm F/3.5-6.3 Di III-A VC VXD.
16-300mm F3.5-6.7 DC OS | Contemporary or 18-300mm F/3.5-6.3 Di III-A VC VXD: which should you buy?
Choose the 16-300mm F3.5-6.7 DC OS | Contemporary for its aperture blades and weight.
Choose the 18-300mm F/3.5-6.3 Di III-A VC VXD for its maximum aperture and closest focus.
 |  | |
|---|---|---|
| Lowest price today | Not priced in US yet | $584.99 new $481 used |
| Optics | ||
| Focal length | 16–300mm | 18–300mm |
| 35mm equivalent | 24–450mm equivalent (26–480mm on Canon) | 27–450mm equivalent (29–480mm on Canon) |
| Maximum apertureLower f-number lets in more light. A zoom wins only when it is as bright at both ends. | f/3.5–6.7 | f/3.5–6.3 (best) |
| Minimum aperture | f/22 | f/22 |
| Made for | APS-C | APS-C |
| Elements / groups | 20 / 14 | 19 / 15 |
| Aperture blades | 9 (best) | 7 |
| Closest focus | 0.17 m | 0.15 m (best) |
| Max magnification | 0.50× | 0.50× |
| Focus & handling | ||
| Autofocus | Yes (HLA) | Yes (VXD) |
| Optical stabilisation | Yes | Yes |
| Weather sealed | Yes | Yes |
| Internal zoom | No | No |
| Aperture ring | No | No |
| Teleconverter compatible | No | No |
| Size & weight | ||
| Weight | 615 g (best) | 620 g |
| Diameter × length | 73.8 × 121.4 mm | 75.5 × 125.6 mm |
| Filter thread | 67 mm | 67 mm |
Green marks the better figure where “better” is unambiguous. A dash means the maker doesn't publish it or we haven't verified it yet.