Compare lenses

Sigma 28-45mm f/1.8 DG DN Art vs Sony FE 28-70mm f/2 GM

The Sigma 28-45mm f/1.8 DG DN Art and the Sony FE 28-70mm f/2 GM side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 28-45mm f/1.8 DG DN Art if you want a brighter f/1.8 (0.3 stops more light), for dim light and softer backgrounds and a fit on more cameras (66 against 41 in this guide). Pick the Sony FE 28-70mm f/2 GM if you want more reach (to 70mm equivalent).

Still torn? Ask the guide about the Sigma 28-45mm f/1.8 DG DN Art and the Sony FE 28-70mm f/2 GM

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 28-45mm f/1.8 DG DN Art	Sony FE 28-70mm f/2 GM
Maker	Sigma	Sony
Focal length	28-45mm (zoom)	28-70mm (zoom)
Full-frame equivalent	28-45mm	28-70mm
Maximum aperture	f/1.8brighter	f/2
Made for	Full frame	Full frame
Mounts	Sony E, L-Mount	Sony E
Stabilised	no	no
Autofocus	yes	yes
Zoom range	1.6×	2.5×more range
Weight	950 g	918 g
Cameras it fits	66 in this guidefits more cameras	41 in this guide

Focal range, in full-frame terms

Sigma 28-45mm f/1.8 DG DN Art: 28-45mm.

Sony FE 28-70mm f/2 GM: 28-70mm.

Aperture

Sigma 28-45mm f/1.8 DG DN Art: f/1.8 wide open.

Sony FE 28-70mm f/2 GM: f/2 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 28-45mm f/1.8 DG DN Art fits 66 and the Sony FE 28-70mm f/2 GM 41.