Compare lenses

Sigma 10-18mm f/2.8 DC DN Contemporary vs Sony E PZ 10-20mm f/4 G

The Sigma 10-18mm f/2.8 DC DN Contemporary and the Sony E PZ 10-20mm f/4 G side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 10-18mm f/2.8 DC DN Contemporary if you want a brighter f/2.8 (1.0 stops more light), for dim light and softer backgrounds and a fit on more cameras (115 against 41 in this guide). Pick the Sony E PZ 10-20mm f/4 G if you want a lighter lens (178 g against 255 g).

Still torn? Ask the guide about the Sigma 10-18mm f/2.8 DC DN Contemporary and the Sony E PZ 10-20mm f/4 G

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 10-18mm f/2.8 DC DN Contemporary	Sony E PZ 10-20mm f/4 G
Maker	Sigma	Sony
Focal length	10-18mm (zoom)	10-20mm (zoom)
Full-frame equivalent	15-27mm on APS-C	15-30mm on APS-C
Maximum aperture	f/2.8brighter	f/4
Made for	APS-C	APS-C
Mounts	Sony E, Fujifilm X, L-Mount, Canon RF	Sony E
Stabilised	no	no
Autofocus	yes	yes
Zoom range	1.8×	2.0×
Weight	255 g	178 glighter
Cameras it fits	115 in this guidefits more cameras	41 in this guide

Focal range, in full-frame terms

Sigma 10-18mm f/2.8 DC DN Contemporary: 10-18mm on APS-C, like 15-27mm.

Sony E PZ 10-20mm f/4 G: 10-20mm on APS-C, like 15-30mm.

Aperture

Sigma 10-18mm f/2.8 DC DN Contemporary: f/2.8 wide open.

Sony E PZ 10-20mm f/4 G: 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

41 cameras in this guide take both, so either works on the same body. In all, the Sigma 10-18mm f/2.8 DC DN Contemporary fits 115 and the Sony E PZ 10-20mm f/4 G 41.