Compare lenses

Sony E 10-18mm f/4 OSS vs Tamron 11-20mm f/2.8 Di III-A RXD

The Sony E 10-18mm f/4 OSS and the Tamron 11-20mm f/2.8 Di III-A RXD side by side, computed from this guide's catalogue.

Which to pick

Pick the Sony E 10-18mm f/4 OSS if you want optical stabilisation, which helps most on bodies without it and a lighter lens (225 g against 335 g). Pick the Tamron 11-20mm f/2.8 Di III-A RXD 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 (90 against 41 in this guide).

Still torn? Ask the guide about the Sony E 10-18mm f/4 OSS and the Tamron 11-20mm f/2.8 Di III-A RXD

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Sony E 10-18mm f/4 OSS	Tamron 11-20mm f/2.8 Di III-A RXD
Maker	Sony	Tamron
Focal length	10-18mm (zoom)	11-20mm (zoom)
Full-frame equivalent	15-27mm on APS-C	16-30mm on APS-C
Maximum aperture	f/4	f/2.8brighter
Made for	APS-C	APS-C
Mounts	Sony E	Sony E, Fujifilm X, Canon RF
Stabilised	yesstabilised	no
Autofocus	yes	yes
Zoom range	1.8×	1.8×
Weight	225 glighter	335 g
Cameras it fits	41 in this guide	90 in this guidefits more cameras

Focal range, in full-frame terms

Sony E 10-18mm f/4 OSS: 10-18mm on APS-C, like 15-27mm.

Tamron 11-20mm f/2.8 Di III-A RXD: 11-20mm on APS-C, like 16-30mm.

Aperture

Sony E 10-18mm f/4 OSS: f/4 wide open.

Tamron 11-20mm f/2.8 Di III-A RXD: f/2.8 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 Sony E 10-18mm f/4 OSS fits 41 and the Tamron 11-20mm f/2.8 Di III-A RXD 90.