Compare lenses

Olympus M.Zuiko 25mm f/1.8 vs TTArtisan 50mm f/2

The Olympus M.Zuiko 25mm f/1.8 and the TTArtisan 50mm f/2 side by side, computed from this guide's catalogue.

Which to pick

Pick the Olympus M.Zuiko 25mm f/1.8 if you want a brighter f/1.8 (0.3 stops more light), for dim light and softer backgrounds; autofocus; and a design for Micro Four Thirds, which usually means smaller and lighter. Pick the TTArtisan 50mm f/2 if you want coverage of full frame, 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 25mm f/1.8 and the TTArtisan 50mm f/2

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 25mm f/1.8	TTArtisan 50mm f/2
Maker	Olympus	TTArtisan
Focal length	25mm (prime)	50mm (prime)
Full-frame equivalent	50mm on Micro Four Thirds	50mm
Maximum aperture	f/1.8brighter	f/2
Made for	Micro Four Thirds	Full frame
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	137 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 25mm f/1.8: 25mm on Micro Four Thirds, like 50mm.

TTArtisan 50mm f/2: 50mm.

Aperture

Olympus M.Zuiko 25mm f/1.8: f/1.8 wide open.

TTArtisan 50mm f/2: f/2 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 25mm f/1.8 fits 49 and the TTArtisan 50mm f/2 180.