Compare lenses

Samyang AF 135mm f/1.8 FE vs Sigma 135mm f/1.4 DG Art

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

Which to pick

Pick the Samyang AF 135mm f/1.8 FE if you want a lighter lens (772 g against 1420 g). 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).

Still torn? Ask the guide about the Samyang AF 135mm f/1.8 FE and the Sigma 135mm f/1.4 DG Art

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Samyang AF 135mm f/1.8 FE	Sigma 135mm f/1.4 DG Art
Maker	Samyang	Sigma
Focal length	135mm (prime)	135mm (prime)
Full-frame equivalent	135mm	135mm
Maximum aperture	f/1.8	f/1.4brighter
Made for	Full frame	Full frame
Mounts	Sony E	Sony E, L-Mount
Stabilised	no	no
Autofocus	yes	yes
Weight	772 glighter	1420 g
Cameras it fits	41 in this guide	66 in this guidefits more cameras

Focal range, in full-frame terms

Samyang AF 135mm f/1.8 FE: 135mm.

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

Aperture

Samyang AF 135mm f/1.8 FE: f/1.8 wide open.

Sigma 135mm f/1.4 DG Art: f/1.4 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 Samyang AF 135mm f/1.8 FE fits 41 and the Sigma 135mm f/1.4 DG Art 66.