Compare lenses

7Artisans AF 18mm f/2 vs TTArtisan AF 17mm f/1.8 Air

The 7Artisans AF 18mm f/2 and the TTArtisan AF 17mm f/1.8 Air side by side, computed from this guide's catalogue.

Which to pick

Pick the TTArtisan AF 17mm f/1.8 Air if you want a brighter f/1.8 (0.3 stops more light), for dim light and softer backgrounds and a fit on more cameras (88 against 41 in this guide). On these specs the 7Artisans AF 18mm f/2 has no clear advantage: choose it if the price, the handling or a lens you own decides it.

Still torn? Ask the guide about the 7Artisans AF 18mm f/2 and the TTArtisan AF 17mm f/1.8 Air

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	7Artisans AF 18mm f/2	TTArtisan AF 17mm f/1.8 Air
Maker	7Artisans	TTArtisan
Focal length	18mm (prime)	17mm (prime)
Full-frame equivalent	27mm on APS-C	26mm on APS-C
Maximum aperture	f/2	f/1.8brighter
Made for	APS-C	APS-C
Mounts	Sony E	Sony E, Fujifilm X, Nikon Z
Stabilised	no	no
Autofocus	yes	yes
Cameras it fits	41 in this guide	88 in this guidefits more cameras

Focal range, in full-frame terms

7Artisans AF 18mm f/2: 18mm on APS-C, like 27mm.

TTArtisan AF 17mm f/1.8 Air: 17mm on APS-C, like 26mm.

Aperture

7Artisans AF 18mm f/2: f/2 wide open.

TTArtisan AF 17mm f/1.8 Air: f/1.8 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 7Artisans AF 18mm f/2 fits 41 and the TTArtisan AF 17mm f/1.8 Air 88.