Compare lenses

7Artisans AF 18mm f/2 vs Sigma 28mm f/1.4 DG HSM Art

The 7Artisans AF 18mm f/2 and the Sigma 28mm f/1.4 DG HSM Art side by side, computed from this guide's catalogue.

Which to pick

Pick the 7Artisans AF 18mm f/2 if you want a design for APS-C, which usually means smaller and lighter. Pick the Sigma 28mm f/1.4 DG HSM Art if you want a brighter f/1.4 (1.0 stops more light), for dim light and softer backgrounds; coverage of full frame, so it suits the larger-sensor bodies too; and a fit on more cameras (105 against 41 in this guide).

Still torn? Ask the guide about the 7Artisans AF 18mm f/2 and the Sigma 28mm f/1.4 DG HSM 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	7Artisans AF 18mm f/2	Sigma 28mm f/1.4 DG HSM Art
Maker	7Artisans	Sigma
Focal length	18mm (prime)	28mm (prime)
Full-frame equivalent	27mm on APS-C	28mm
Maximum aperture	f/2	f/1.4brighter
Made for	APS-C	Full frame
Mounts	Sony E	Canon EF, Nikon F, Sony E, L-Mount
Stabilised	no	no
Autofocus	yes	yes
Cameras it fits	41 in this guide	105 in this guidefits more cameras

Focal range, in full-frame terms

7Artisans AF 18mm f/2: 18mm on APS-C, like 27mm.

Sigma 28mm f/1.4 DG HSM Art: 28mm.

Aperture

7Artisans AF 18mm f/2: f/2 wide open.

Sigma 28mm f/1.4 DG HSM 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 7Artisans AF 18mm f/2 fits 41 and the Sigma 28mm f/1.4 DG HSM Art 105.