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Panasonic Lumix S 18mm f/1.8 vs Sigma 24mm f/2 DG Contemporary

Both are L-Mount primes for wide-angle and street — 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

SpecPanasonic Lumix S 18mm f/1.8Sigma 24mm f/2 DG Contemporary
Focal length18mm24mm
Max aperturef/1.8f/2
Typeprimeprime
Coveragefull-framefull-frame
MountL-MountL-Mount

Which should you buy?

Where to buy

Panasonic LUMIX S Series Camera Lens, 18mm F1.8 L-Mount Interchangeable Lens for Mirrorless Full Frame Digital Cameras -

Panasonic Lumix S 18mm f/1.8See price on Amazon

Amazon links are affiliate links — we may earn a commission at no extra cost to you.

Sigma 24mm F2 DG II (Black) I Series | Contemporary for L Mount | AF drive system incorporates a quiet, High-speed stepp

Sigma 24mm f/2 DG ContemporarySee 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 Panasonic Lumix S 18mm f/1.8 and the Sigma 24mm f/2 DG Contemporary?
The Panasonic Lumix S 18mm f/1.8 is 18mm f/1.8 prime, full-frame; the Sigma 24mm f/2 DG Contemporary is 24mm f/2 prime, full-frame. Both fit the L-Mount.

Which is better in low light, the Panasonic Lumix S 18mm f/1.8 or the Sigma 24mm f/2 DG Contemporary?
The Panasonic Lumix S 18mm f/1.8 — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2 of the other.

Do the Panasonic Lumix S 18mm f/1.8 and Sigma 24mm f/2 DG 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).

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

More L-Mount comparisons: Panasonic Lumix S 20-60mm f/3.5-5.6 vs Panasonic Lumix S PRO 24-70mm f/2.8 · Panasonic Lumix S 20-60mm f/3.5-5.6 vs Sigma 24-70mm f/2.8 DG DN II Art · Panasonic Lumix S 20-60mm f/3.5-5.6 vs Panasonic Lumix S 24-105mm f/4 Macro OIS · Panasonic Lumix S 20-60mm f/3.5-5.6 vs Panasonic Lumix S PRO 16-35mm f/4 · all L-Mount lenses · all comparisons

Panasonic Lumix S 18mm f/1.8Affiliate linkSee price on Amazon

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