Compare lenses

7Artisans 18mm f/5.6 vs Sigma 17mm f/4 DG Contemporary

The 7Artisans 18mm f/5.6 and the Sigma 17mm f/4 DG Contemporary side by side, computed from this guide's catalogue.

Which to pick

Pick the 7Artisans 18mm f/5.6 if you want a fit on more cameras (82 against 66 in this guide). Pick the Sigma 17mm f/4 DG Contemporary if you want a brighter f/4 (1.0 stops more light), for dim light and softer backgrounds and autofocus.

Still torn? Ask the guide about the 7Artisans 18mm f/5.6 and the Sigma 17mm f/4 DG Contemporary

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	7Artisans 18mm f/5.6	Sigma 17mm f/4 DG Contemporary
Maker	7Artisans	Sigma
Focal length	18mm (prime)	17mm (prime)
Full-frame equivalent	18mm	17mm
Maximum aperture	f/5.6	f/4brighter
Made for	Full frame	Full frame
Mounts	Sony E, Nikon Z, L-Mount	Sony E, L-Mount
Stabilised	no	no
Autofocus	no, manual focus	yesautofocus
Weight	not listed	220 g
Cameras it fits	82 in this guidefits more cameras	66 in this guide

Focal range, in full-frame terms

7Artisans 18mm f/5.6: 18mm.

Sigma 17mm f/4 DG Contemporary: 17mm.

Aperture

7Artisans 18mm f/5.6: f/5.6 wide open.

Sigma 17mm f/4 DG Contemporary: f/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

66 cameras in this guide take both, so either works on the same body. In all, the 7Artisans 18mm f/5.6 fits 82 and the Sigma 17mm f/4 DG Contemporary 66.