Compare lenses

Tokina FíRIN 20mm f/2 FE AF vs Zeiss Loxia 21mm f/2.8

The Tokina FíRIN 20mm f/2 FE AF and the Zeiss Loxia 21mm f/2.8 side by side, computed from this guide's catalogue.

Which to pick

Pick the Tokina FíRIN 20mm f/2 FE AF if you want a brighter f/2 (1.0 stops more light), for dim light and softer backgrounds and autofocus. Pick the Zeiss Loxia 21mm f/2.8 if you want a lighter lens (394 g against 464 g).

Still torn? Ask the guide about the Tokina FíRIN 20mm f/2 FE AF and the Zeiss Loxia 21mm 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	Tokina FíRIN 20mm f/2 FE AF	Zeiss Loxia 21mm f/2.8
Maker	Tokina	Zeiss
Focal length	20mm (prime)	21mm (prime)
Full-frame equivalent	20mm	21mm
Maximum aperture	f/2brighter	f/2.8
Made for	Full frame	Full frame
Mounts	Sony E	Sony E
Stabilised	no	no
Autofocus	yesautofocus	no, manual focus
Weight	464 g	394 glighter
Cameras it fits	41 in this guide	41 in this guide

Focal range, in full-frame terms

Tokina FíRIN 20mm f/2 FE AF: 20mm.

Zeiss Loxia 21mm f/2.8: 21mm.

Aperture

Tokina FíRIN 20mm f/2 FE AF: f/2 wide open.

Zeiss Loxia 21mm 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.