Compare lenses

Sigma 28-105mm f/2.8 DG DN Art vs Tamron 28-75mm f/2.8 Di III RXD

The Sigma 28-105mm f/2.8 DG DN Art and the Tamron 28-75mm f/2.8 Di III RXD side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 28-105mm f/2.8 DG DN Art if you want more reach (to 105mm equivalent) and a fit on more cameras (66 against 41 in this guide). Pick the Tamron 28-75mm f/2.8 Di III RXD if you want a lighter lens (550 g against 990 g).

Still torn? Ask the guide about the Sigma 28-105mm f/2.8 DG DN Art and the Tamron 28-75mm f/2.8 Di III RXD

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 28-105mm f/2.8 DG DN Art	Tamron 28-75mm f/2.8 Di III RXD
Maker	Sigma	Tamron
Focal length	28-105mm (zoom)	28-75mm (zoom)
Full-frame equivalent	28-105mm	28-75mm
Maximum aperture	f/2.8	f/2.8
Made for	Full frame	Full frame
Mounts	Sony E, L-Mount	Sony E
Stabilised	no	no
Autofocus	yes	yes
Zoom range	3.8×more range	2.7×
Weight	990 g	550 glighter
Cameras it fits	66 in this guidefits more cameras	41 in this guide

Focal range, in full-frame terms

Sigma 28-105mm f/2.8 DG DN Art: 28-105mm.

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

Aperture

Sigma 28-105mm f/2.8 DG DN Art: f/2.8 wide open.

Tamron 28-75mm f/2.8 Di III RXD: 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 28-105mm f/2.8 DG DN Art fits 66 and the Tamron 28-75mm f/2.8 Di III RXD 41.