Compare lenses

Sigma 28-70mm f/2.8 DG DN Contemporary vs Tamron 28-75mm f/2.8 Di III VXD G2

The Sigma 28-70mm f/2.8 DG DN Contemporary and the Tamron 28-75mm f/2.8 Di III VXD G2 side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 28-70mm f/2.8 DG DN Contemporary if you want a lighter lens (470 g against 540 g). On these specs the Tamron 28-75mm f/2.8 Di III VXD G2 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 28-70mm f/2.8 DG DN Contemporary and the Tamron 28-75mm f/2.8 Di III VXD G2

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 28-70mm f/2.8 DG DN Contemporary	Tamron 28-75mm f/2.8 Di III VXD G2
Maker	Sigma	Tamron
Focal length	28-70mm (zoom)	28-75mm (zoom)
Full-frame equivalent	28-70mm	28-75mm
Maximum aperture	f/2.8	f/2.8
Made for	Full frame	Full frame
Mounts	Sony E, L-Mount	Sony E, Nikon Z
Stabilised	no	no
Autofocus	yes	yes
Zoom range	2.5×	2.7×
Weight	470 glighter	540 g
Cameras it fits	66 in this guide	57 in this guide

Focal range, in full-frame terms

Sigma 28-70mm f/2.8 DG DN Contemporary: 28-70mm.

Tamron 28-75mm f/2.8 Di III VXD G2: 28-75mm.

Aperture

Sigma 28-70mm f/2.8 DG DN Contemporary: f/2.8 wide open.

Tamron 28-75mm f/2.8 Di III VXD G2: f/2.8 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 28-70mm f/2.8 DG DN Contemporary fits 66 and the Tamron 28-75mm f/2.8 Di III VXD G2 57.