Compare lenses

Sony FE 12-24mm f/2.8 GM vs Tamron 12-20mm f/2.8

The Sony FE 12-24mm f/2.8 GM and the Tamron 12-20mm f/2.8 side by side, computed from this guide's catalogue.

Which to pick

Pick the Sony FE 12-24mm f/2.8 GM if you want more reach (to 24mm equivalent). Pick the Tamron 12-20mm f/2.8 if you want a fit on more cameras (57 against 41 in this guide) and a lighter lens (570 g against 847 g).

Still torn? Ask the guide about the Sony FE 12-24mm f/2.8 GM and the Tamron 12-20mm f/2.8

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 FE 12-24mm f/2.8 GM	Tamron 12-20mm f/2.8
Maker	Sony	Tamron
Focal length	12-24mm (zoom)	12-20mm (zoom)
Full-frame equivalent	12-24mm	12-20mm
Maximum aperture	f/2.8	f/2.8
Made for	Full frame	Full frame
Mounts	Sony E	Sony E, Nikon Z
Stabilised	no	no
Autofocus	yes	yes
Zoom range	2.0×more range	1.7×
Weight	847 g	570 glighter
Cameras it fits	41 in this guide	57 in this guidefits more cameras

Focal range, in full-frame terms

Sony FE 12-24mm f/2.8 GM: 12-24mm.

Tamron 12-20mm f/2.8: 12-20mm.

Aperture

Sony FE 12-24mm f/2.8 GM: f/2.8 wide open.

Tamron 12-20mm f/2.8: 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 FE 12-24mm f/2.8 GM fits 41 and the Tamron 12-20mm f/2.8 57.