Compare lenses

Sigma 14mm f/1.8 DG HSM Art vs Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art

The Sigma 14mm f/1.8 DG HSM Art and the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 14mm f/1.8 DG HSM Art if you want a fit on more cameras (105 against 66 in this guide). Pick the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art if you want a brighter f/1.4 (0.7 stops more light), for dim light and softer backgrounds.

Still torn? Ask the guide about the Sigma 14mm f/1.8 DG HSM Art and the Sigma 15mm f/1.4 DG DN Diagonal Fisheye 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	Sigma 14mm f/1.8 DG HSM Art	Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art
Maker	Sigma	Sigma
Focal length	14mm (prime)	15mm (prime)
Full-frame equivalent	14mm	15mm
Maximum aperture	f/1.8	f/1.4brighter
Made for	Full frame	Full frame
Mounts	Canon EF, Nikon F, Sony E, L-Mount	Sony E, L-Mount
Stabilised	no	no
Autofocus	yes	yes
Weight	not listed	1360 g
Cameras it fits	105 in this guidefits more cameras	66 in this guide

Focal range, in full-frame terms

Sigma 14mm f/1.8 DG HSM Art: 14mm.

Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art: 15mm.

Aperture

Sigma 14mm f/1.8 DG HSM Art: f/1.8 wide open.

Sigma 15mm f/1.4 DG DN Diagonal Fisheye 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

66 cameras in this guide take both, so either works on the same body. In all, the Sigma 14mm f/1.8 DG HSM Art fits 105 and the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art 66.