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Leica APO-Summicron-SL 50mm f/2 ASPH vs Viltrox AF 50mm f/2 Air

The Leica APO-Summicron-SL 50mm f/2 ASPH and the Viltrox AF 50mm f/2 Air side by side, computed from this guide's catalogue.

Which to pick

Pick the Viltrox AF 50mm f/2 Air if you want a fit on more cameras (82 against 25 in this guide) and a lighter lens (205 g against 740 g). On these specs the Leica APO-Summicron-SL 50mm f/2 ASPH 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 Leica APO-Summicron-SL 50mm f/2 ASPH and the Viltrox AF 50mm f/2 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	Leica APO-Summicron-SL 50mm f/2 ASPH	Viltrox AF 50mm f/2 Air
Maker	Leica	Viltrox
Focal length	50mm (prime)	50mm (prime)
Full-frame equivalent	50mm	50mm
Maximum aperture	f/2	f/2
Made for	Full frame	Full frame
Mounts	L-Mount	Sony E, Nikon Z, L-Mount
Stabilised	no	no
Autofocus	yes	yes
Weight	740 g	205 glighter
Cameras it fits	25 in this guide	82 in this guidefits more cameras

Focal range, in full-frame terms

Leica APO-Summicron-SL 50mm f/2 ASPH: 50mm.

Viltrox AF 50mm f/2 Air: 50mm.

Aperture

Leica APO-Summicron-SL 50mm f/2 ASPH: f/2 wide open.

Viltrox AF 50mm f/2 Air: 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

25 cameras in this guide take both, so either works on the same body. In all, the Leica APO-Summicron-SL 50mm f/2 ASPH fits 25 and the Viltrox AF 50mm f/2 Air 82.