Sigma 28-70mm f/2.8 DG DN Contemporary vs Sigma 18-50mm f/2.8 DC DN Contemporary

Both are L-Mount zooms for pro standard zoom and everyday — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · L-Mount · prices change — check the retailer

Spec	Sigma 28-70mm f/2.8 DG DN Contemporary	Sigma 18-50mm f/2.8 DC DN Contemporary
Focal length	28-70mm	18-50mm
Max aperture	f/2.8	f/2.8
Type	zoom	zoom
Coverage	full-frame	APS-C
Mount	L-Mount	L-Mount

Which should you buy?

the Sigma 28-70mm f/2.8 DG DN Contemporary covers 28-70mm and the Sigma 18-50mm f/2.8 DC DN Contemporary covers 18-50mm — pick the range that matches what you shoot
the Sigma 28-70mm f/2.8 DG DN Contemporary covers full-frame (also works on APS-C bodies); the Sigma 18-50mm f/2.8 DC DN Contemporary is APS-C-only — it won't fill a full-frame sensor

Where to buy

Sigma 28-70mm f/2.8 DG DN ContemporarySee price on Amazon

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Sigma 18-50mm F2.8 DC DN Contemporary for L Mount

Sigma 18-50mm f/2.8 DC DN ContemporarySee price on Amazon Amazon has no new-stock listing for this one right now — this button runs an Amazon search for it rather than opening a product page.

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FAQ

What's the difference between the Sigma 28-70mm f/2.8 DG DN Contemporary and the Sigma 18-50mm f/2.8 DC DN Contemporary?
The Sigma 28-70mm f/2.8 DG DN Contemporary is 28-70mm f/2.8 zoom, full-frame; the Sigma 18-50mm f/2.8 DC DN Contemporary is 18-50mm f/2.8 zoom, APS-C. Both fit the L-Mount.

Do the Sigma 28-70mm f/2.8 DG DN Contemporary and Sigma 18-50mm f/2.8 DC DN Contemporary fit the same camera?
Yes — both are L-Mount lenses, so they fit Panasonic Lumix S, Leica SL, and Sigma fp full-frame bodies (the L-Mount Alliance). Note the Sigma 18-50mm f/2.8 DC DN Contemporary is APS-C-only and won't fill a full-frame sensor.

Citing these specs? Go ahead — manufacturer data, last verified 2026-09-01. Copy a ready-made reference:

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Sigma 28-70mm f/2.8 DG DN ContemporaryAffiliate linkSee price on Amazon