Compare lenses

Sigma 20-200mm f/3.5-6.3 DG Contemporary vs Tamron 28-300mm f/4-7.1 Di III VC VXD

The Sigma 20-200mm f/3.5-6.3 DG Contemporary and the Tamron 28-300mm f/4-7.1 Di III VC VXD side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 20-200mm f/3.5-6.3 DG Contemporary if you want a brighter f/3.5 (0.4 stops more light), for dim light and softer backgrounds; a wider view (from 20mm equivalent); a fit on more cameras (66 against 41 in this guide); and a lighter lens (540 g against 610 g). Pick the Tamron 28-300mm f/4-7.1 Di III VC VXD if you want optical stabilisation, which helps most on bodies without it and more reach (to 300mm equivalent).

Still torn? Ask the guide about the Sigma 20-200mm f/3.5-6.3 DG Contemporary and the Tamron 28-300mm f/4-7.1 Di III VC VXD

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Sigma 20-200mm f/3.5-6.3 DG Contemporary	Tamron 28-300mm f/4-7.1 Di III VC VXD
Maker	Sigma	Tamron
Focal length	20-200mm (zoom)	28-300mm (zoom)
Full-frame equivalent	20-200mm	28-300mm
Maximum aperture	f/3.5-6.3brighter	f/4-7.1
Made for	Full frame	Full frame
Mounts	Sony E, L-Mount	Sony E
Stabilised	no	yesstabilised
Autofocus	yes	yes
Zoom range	10.0×	10.7×
Weight	540 glighter	610 g
Cameras it fits	66 in this guidefits more cameras	41 in this guide

Focal range, in full-frame terms

Sigma 20-200mm f/3.5-6.3 DG Contemporary: 20-200mm.

Tamron 28-300mm f/4-7.1 Di III VC VXD: 28-300mm.

Aperture

Sigma 20-200mm f/3.5-6.3 DG Contemporary: f/3.5 wide open.

Tamron 28-300mm f/4-7.1 Di III VC VXD: f/4 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

41 cameras in this guide take both, so either works on the same body. In all, the Sigma 20-200mm f/3.5-6.3 DG Contemporary fits 66 and the Tamron 28-300mm f/4-7.1 Di III VC VXD 41.