FitMyLensthe lens-by-mount reference

Sigma 28-70mm f/2.8 DG DN Contemporary vs Panasonic Lumix S 20-60mm f/3.5-5.6

Both are L-Mount mount zooms for everyday — 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

SpecSigma 28-70mm f/2.8 DG DN ContemporaryPanasonic Lumix S 20-60mm f/3.5-5.6
Focal length28-70mm20-60mm
Max aperturef/2.8f/3.5-5.6
Typezoomzoom
Coveragefull-framefull-frame
MountL-MountL-Mount

Which should you buy?

Where to buy

Check the Sigma 28-70mm f/2.8 DG DN Contemporary price on Amazon →

Check the Panasonic Lumix S 20-60mm f/3.5-5.6 price on Amazon →

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which lenses we compare.

FAQ

What's the difference between the Sigma 28-70mm f/2.8 DG DN Contemporary and the Panasonic Lumix S 20-60mm f/3.5-5.6?
The Sigma 28-70mm f/2.8 DG DN Contemporary is 28-70mm f/2.8 zoom, full-frame; the Panasonic Lumix S 20-60mm f/3.5-5.6 is 20-60mm f/3.5-5.6 zoom, full-frame. Both fit the L-Mount mount.

Which is better in low light, the Sigma 28-70mm f/2.8 DG DN Contemporary or the Panasonic Lumix S 20-60mm f/3.5-5.6?
The Sigma 28-70mm f/2.8 DG DN Contemporary — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/3.5-5.6 of the other.

Do the Sigma 28-70mm f/2.8 DG DN Contemporary and Panasonic Lumix S 20-60mm f/3.5-5.6 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 70-200mm f/2.8 OIS vs Sigma 70-200mm f/2.8 DG DN OS Sports · Sigma 24-70mm f/2.8 DG DN II Art vs Sigma 28-70mm f/2.8 DG DN Contemporary · all L-Mount lenses · all comparisons