Compare lenses

Olympus M.Zuiko 17mm f/1.8 vs TTArtisan 23mm f/1.4

The Olympus M.Zuiko 17mm f/1.8 and the TTArtisan 23mm f/1.4 side by side, computed from this guide's catalogue.

Which to pick

Pick the Olympus M.Zuiko 17mm f/1.8 if you want autofocus and a design for Micro Four Thirds, which usually means smaller and lighter. Pick the TTArtisan 23mm f/1.4 if you want a brighter f/1.4 (0.7 stops more light), for dim light and softer backgrounds; coverage of APS-C, so it suits the larger-sensor bodies too; and a fit on more cameras (180 against 49 in this guide).

Still torn? Ask the guide about the Olympus M.Zuiko 17mm f/1.8 and the TTArtisan 23mm f/1.4

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Olympus M.Zuiko 17mm f/1.8	TTArtisan 23mm f/1.4
Maker	Olympus	TTArtisan
Focal length	17mm (prime)	23mm (prime)
Full-frame equivalent	34mm on Micro Four Thirds	34mm on APS-C
Maximum aperture	f/1.8	f/1.4brighter
Made for	Micro Four Thirds	APS-C
Mounts	Micro Four Thirds	Sony E, Fujifilm X, Nikon Z, Canon RF, L-Mount, Micro Four Thirds
Stabilised	no	no
Autofocus	yesautofocus	no, manual focus
Weight	120 g	not listed
Cameras it fits	49 in this guide	180 in this guidefits more cameras

Focal range, in full-frame terms

Olympus M.Zuiko 17mm f/1.8: 17mm on Micro Four Thirds, like 34mm.

TTArtisan 23mm f/1.4: 23mm on APS-C, like 34mm.

Aperture

Olympus M.Zuiko 17mm f/1.8: f/1.8 wide open.

TTArtisan 23mm f/1.4: f/1.4 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

49 cameras in this guide take both, so either works on the same body. In all, the Olympus M.Zuiko 17mm f/1.8 fits 49 and the TTArtisan 23mm f/1.4 180.