Compare lenses

Canon RF 50mm f/1.8 STM vs TTArtisan 50mm f/1.4 ASPH

The Canon RF 50mm f/1.8 STM and the TTArtisan 50mm f/1.4 ASPH side by side, computed from this guide's catalogue.

Which to pick

Pick the Canon RF 50mm f/1.8 STM if you want autofocus. Pick the TTArtisan 50mm f/1.4 ASPH if you want a brighter f/1.4 (0.7 stops more light), for dim light and softer backgrounds and a fit on more cameras (120 against 18 in this guide).

Still torn? Ask the guide about the Canon RF 50mm f/1.8 STM and the TTArtisan 50mm f/1.4 ASPH

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Canon RF 50mm f/1.8 STM	TTArtisan 50mm f/1.4 ASPH
Maker	Canon	TTArtisan
Focal length	50mm (prime)	50mm (prime)
Full-frame equivalent	50mm	50mm
Maximum aperture	f/1.8	f/1.4brighter
Made for	Full frame	Full frame
Mounts	Canon RF	Sony E, Nikon Z, Canon RF, L-Mount, Leica M
Stabilised	no	no
Autofocus	yesautofocus	no, manual focus
Weight	160 g	not listed
Cameras it fits	18 in this guide	120 in this guidefits more cameras

Focal range, in full-frame terms

Canon RF 50mm f/1.8 STM: 50mm.

TTArtisan 50mm f/1.4 ASPH: 50mm.

Aperture

Canon RF 50mm f/1.8 STM: f/1.8 wide open.

TTArtisan 50mm f/1.4 ASPH: 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

18 cameras in this guide take both, so either works on the same body. In all, the Canon RF 50mm f/1.8 STM fits 18 and the TTArtisan 50mm f/1.4 ASPH 120.