Compare lenses

Sigma 135mm f/1.4 DG Art vs Sony FE 135mm f/1.8 GM

The Sigma 135mm f/1.4 DG Art and the Sony FE 135mm f/1.8 GM side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 135mm f/1.4 DG Art if you want a brighter f/1.4 (0.7 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 135mm f/1.8 GM if you want a lighter lens (953 g against 1420 g).

Still torn? Ask the guide about the Sigma 135mm f/1.4 DG Art and the Sony FE 135mm f/1.8 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 135mm f/1.4 DG Art	Sony FE 135mm f/1.8 GM
Maker	Sigma	Sony
Focal length	135mm (prime)	135mm (prime)
Full-frame equivalent	135mm	135mm
Maximum aperture	f/1.4brighter	f/1.8
Made for	Full frame	Full frame
Mounts	Sony E, L-Mount	Sony E
Stabilised	no	no
Autofocus	yes	yes
Weight	1420 g	953 glighter
Cameras it fits	66 in this guidefits more cameras	41 in this guide

Focal range, in full-frame terms

Sigma 135mm f/1.4 DG Art: 135mm.

Sony FE 135mm f/1.8 GM: 135mm.

Aperture

Sigma 135mm f/1.4 DG Art: f/1.4 wide open.

Sony FE 135mm f/1.8 GM: f/1.8 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 135mm f/1.4 DG Art fits 66 and the Sony FE 135mm f/1.8 GM 41.