Compare lenses

Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary vs Tamron 100-400mm f/4.5-6.3 Di VC USD

The Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary and the Tamron 100-400mm f/4.5-6.3 Di VC USD side by side, computed from this guide's catalogue.

Which to pick

Pick the Tamron 100-400mm f/4.5-6.3 Di VC USD if you want a brighter f/4.5 (0.3 stops more light), for dim light and softer backgrounds. On these specs the Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary has no clear advantage: choose it if the price, the handling or a lens you own decides it.

Still torn? Ask the guide about the Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary and the Tamron 100-400mm f/4.5-6.3 Di VC USD

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 100-400mm f/5-6.3 DG OS HSM Contemporary	Tamron 100-400mm f/4.5-6.3 Di VC USD
Maker	Sigma	Tamron
Focal length	100-400mm (zoom)	100-400mm (zoom)
Full-frame equivalent	100-400mm	100-400mm
Maximum aperture	f/5-6.3	f/4.5-6.3brighter
Made for	Full frame	Full frame
Mounts	Canon EF, Nikon F	Canon EF, Nikon F
Stabilised	yes	yes
Autofocus	yes	yes
Zoom range	4.0×	4.0×
Cameras it fits	39 in this guide	39 in this guide

Focal range, in full-frame terms

Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary: 100-400mm.

Tamron 100-400mm f/4.5-6.3 Di VC USD: 100-400mm.

Aperture

Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary: f/5 wide open.

Tamron 100-400mm f/4.5-6.3 Di VC USD: f/4.5 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

39 cameras in this guide take both, so either works on the same body.