Compare lenses

Leica APO-Summicron-SL 90mm f/2 ASPH vs Sigma 90mm f/2.8 DG Contemporary

The Leica APO-Summicron-SL 90mm f/2 ASPH and the Sigma 90mm f/2.8 DG Contemporary side by side, computed from this guide's catalogue.

Which to pick

Pick the Leica APO-Summicron-SL 90mm f/2 ASPH if you want a brighter f/2 (1.0 stops more light), for dim light and softer backgrounds. Pick the Sigma 90mm f/2.8 DG Contemporary if you want a fit on more cameras (66 against 25 in this guide) and a lighter lens (295 g against 700 g).

Still torn? Ask the guide about the Leica APO-Summicron-SL 90mm f/2 ASPH and the Sigma 90mm f/2.8 DG Contemporary

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 90mm f/2 ASPH	Sigma 90mm f/2.8 DG Contemporary
Maker	Leica	Sigma
Focal length	90mm (prime)	90mm (prime)
Full-frame equivalent	90mm	90mm
Maximum aperture	f/2brighter	f/2.8
Made for	Full frame	Full frame
Mounts	L-Mount	Sony E, L-Mount
Stabilised	no	no
Autofocus	yes	yes
Weight	700 g	295 glighter
Cameras it fits	25 in this guide	66 in this guidefits more cameras

Focal range, in full-frame terms

Leica APO-Summicron-SL 90mm f/2 ASPH: 90mm.

Sigma 90mm f/2.8 DG Contemporary: 90mm.

Aperture

Leica APO-Summicron-SL 90mm f/2 ASPH: f/2 wide open.

Sigma 90mm f/2.8 DG Contemporary: f/2.8 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

25 cameras in this guide take both, so either works on the same body. In all, the Leica APO-Summicron-SL 90mm f/2 ASPH fits 25 and the Sigma 90mm f/2.8 DG Contemporary 66.