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Viltrox AF 14mm f/4.0 Air vs Viltrox AF 20mm f/2.8 Air

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

SpecViltrox AF 14mm f/4.0 AirViltrox AF 20mm f/2.8 Air
Focal length14mm20mm
Max aperturef/4.0f/2.8
Typeprimeprime
Coveragefull-framefull-frame
MountL-MountL-Mount

Which should you buy?

Where to buy

VILTROX AF 14mm F4.0 Air L Full-Frame Lens for L-Mount, Ultra Wide Angle | Full-Frame 14mm Prime, Ultra-Wide Autofocus L

Viltrox AF 14mm f/4.0 AirSee price on Amazon

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

VILTROX AF 20mm F2.8 Air Full Frame Lens for L-Mount | Ultra-Wide Prime STM Autofocus Lightweight 157g Compact 0.19m Foc

Viltrox AF 20mm f/2.8 AirSee 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 Viltrox AF 14mm f/4.0 Air and the Viltrox AF 20mm f/2.8 Air?
The Viltrox AF 14mm f/4.0 Air is 14mm f/4.0 prime, full-frame; the Viltrox AF 20mm f/2.8 Air is 20mm f/2.8 prime, full-frame. Both fit the L-Mount.

Which is better in low light, the Viltrox AF 14mm f/4.0 Air or the Viltrox AF 20mm f/2.8 Air?
The Viltrox AF 20mm f/2.8 Air — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/4.0 of the other.

Do the Viltrox AF 14mm f/4.0 Air and Viltrox AF 20mm f/2.8 Air 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 PRO 50mm f/1.4 vs Sigma 50mm f/1.4 DG DN Art · Sigma 24-70mm f/2.8 DG DN II Art vs Sigma 28-70mm f/2.8 DG DN Contemporary · Viltrox AF 40mm f/2.5 Air vs Viltrox AF 28mm f/4.5 · Viltrox AF 40mm f/2.5 Air vs TTArtisan AF 40mm f/2 · all L-Mount lenses · all comparisons

Viltrox AF 14mm f/4.0 AirAffiliate linkSee price on Amazon

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