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Leica SL 50mm f/2 APO-Summicron vs Sigma 65mm f/2 DG DN Contemporary

Both are L-Mount mount primes for standard prime — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-06-21 · L-Mount mount · prices change — check the retailer

SpecLeica SL 50mm f/2 APO-SummicronSigma 65mm f/2 DG DN Contemporary
Focal length50mm65mm
Max aperturef/2f/2
Typeprimeprime
Coveragefull-framefull-frame
MountL-MountL-Mount

Which should you buy?

Where to buy

Check the Leica SL 50mm f/2 APO-Summicron price on Amazon →

Check the Sigma 65mm f/2 DG DN Contemporary price on Amazon →

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FAQ

What's the difference between the Leica SL 50mm f/2 APO-Summicron and the Sigma 65mm f/2 DG DN Contemporary?
The Leica SL 50mm f/2 APO-Summicron is 50mm f/2 prime, full-frame; the Sigma 65mm f/2 DG DN Contemporary is 65mm f/2 prime, full-frame. Both fit the L-Mount mount.

Do the Leica SL 50mm f/2 APO-Summicron and Sigma 65mm f/2 DG DN Contemporary fit the same camera?
Yes — both are L-Mount mount lenses, so they fit Panasonic Lumix S, Leica SL, and Sigma fp full-frame bodies (the L-Mount Alliance).

More L-Mount comparisons: Panasonic Lumix S PRO 50mm f/1.4 vs Sigma 50mm f/1.4 DG DN Art · Panasonic Lumix S 18mm f/1.8 vs Sigma 24mm f/1.4 DG DN Art · Panasonic Lumix S PRO 50mm f/1.4 vs Sigma 85mm f/1.4 DG DN Art · Panasonic Lumix S PRO 70-200mm f/2.8 OIS vs Sigma 70-200mm f/2.8 DG DN OS Sports · all L-Mount lenses · all comparisons