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Sigma 20mm f/1.4 DG DN Art vs Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art

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

SpecSigma 20mm f/1.4 DG DN ArtSigma 15mm f/1.4 DG DN Diagonal Fisheye Art
Focal length20mm15mm
Max aperturef/1.4f/1.4
Typeprimeprime
Coveragefull-framefull-frame
MountL-MountL-Mount

Which should you buy?

Where to buy

Sigma 20mm f/1.4 DG DN Art Lens for L Mount

Sigma 20mm f/1.4 DG DN ArtSee price on Amazon

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

Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art Lens, L Mount, Included Value | HLA motor, MFL switch, tripod socket, rear f

Sigma 15mm f/1.4 DG DN Diagonal Fisheye ArtSee 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 20mm f/1.4 DG DN Art and the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art?
The Sigma 20mm f/1.4 DG DN Art is 20mm f/1.4 prime, full-frame; the Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art is 15mm f/1.4 prime, full-frame. Both fit the L-Mount.

Do the Sigma 20mm f/1.4 DG DN Art and Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art 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:

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Sigma 20mm f/1.4 DG DN ArtAffiliate linkSee price on Amazon

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