Compare lenses

Samyang AF 12mm f/2 vs Samyang AF 18mm f/2.8 FE

The Samyang AF 12mm f/2 and the Samyang AF 18mm f/2.8 FE side by side, computed from this guide's catalogue.

Which to pick

Pick the Samyang AF 12mm f/2 if you want a brighter f/2 (1.0 stops more light), for dim light and softer backgrounds; a design for APS-C, which usually means smaller and lighter; and a fit on more cameras (90 against 41 in this guide). Pick the Samyang AF 18mm f/2.8 FE if you want coverage of full frame, so it suits the larger-sensor bodies too.

Still torn? Ask the guide about the Samyang AF 12mm f/2 and the Samyang AF 18mm f/2.8 FE

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Samyang AF 12mm f/2	Samyang AF 18mm f/2.8 FE
Maker	Samyang	Samyang
Focal length	12mm (prime)	18mm (prime)
Full-frame equivalent	18mm on APS-C	18mm
Maximum aperture	f/2brighter	f/2.8
Made for	APS-C	Full frame
Mounts	Sony E, Fujifilm X, Canon RF	Sony E
Stabilised	no	no
Autofocus	yes	yes
Weight	not listed	145 g
Cameras it fits	90 in this guidefits more cameras	41 in this guide

Focal range, in full-frame terms

Samyang AF 12mm f/2: 12mm on APS-C, like 18mm.

Samyang AF 18mm f/2.8 FE: 18mm.

Aperture

Samyang AF 12mm f/2: f/2 wide open.

Samyang AF 18mm f/2.8 FE: 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 Samyang AF 12mm f/2 fits 90 and the Samyang AF 18mm f/2.8 FE 41.