Compare lenses

Sigma 20mm f/1.4 DG HSM Art vs Viltrox AF 13mm f/1.4

The Sigma 20mm f/1.4 DG HSM Art and the Viltrox AF 13mm f/1.4 side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 20mm f/1.4 DG HSM Art if you want coverage of full frame, so it suits the larger-sensor bodies too. Pick the Viltrox AF 13mm f/1.4 if you want a design for APS-C, which usually means smaller and lighter.

Still torn? Ask the guide about the Sigma 20mm f/1.4 DG HSM Art and the Viltrox AF 13mm f/1.4

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 20mm f/1.4 DG HSM Art	Viltrox AF 13mm f/1.4
Maker	Sigma	Viltrox
Focal length	20mm (prime)	13mm (prime)
Full-frame equivalent	20mm	20mm on APS-C
Maximum aperture	f/1.4	f/1.4
Made for	Full frame	APS-C
Mounts	Canon EF, Nikon F, Sony E, L-Mount	Fujifilm X, Sony E, Nikon Z
Stabilised	no	no
Autofocus	yes	yes
Weight	not listed	420 g
Cameras it fits	105 in this guide	88 in this guide

Focal range, in full-frame terms

Sigma 20mm f/1.4 DG HSM Art: 20mm.

Viltrox AF 13mm f/1.4: 13mm on APS-C, like 20mm.

Aperture

Sigma 20mm f/1.4 DG HSM Art: f/1.4 wide open.

Viltrox AF 13mm f/1.4: 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 Sigma 20mm f/1.4 DG HSM Art fits 105 and the Viltrox AF 13mm f/1.4 88.