FitMyLensthe lens-by-mount reference

Viltrox AF 16mm f/1.8 vs Viltrox AF 20mm f/2.8

Both are Sony E 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 2026-06-21 · Sony E mount · prices change — check the retailer

SpecViltrox AF 16mm f/1.8Viltrox AF 20mm f/2.8
Focal length16mm20mm
Max aperturef/1.8f/2.8
Typeprimeprime
Coveragefull-framefull-frame
MountSony ESony E

Which should you buy?

Where to buy

Check the Viltrox AF 16mm f/1.8 price on Amazon →

Check the Viltrox AF 20mm f/2.8 price on Amazon →

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FAQ

What's the difference between the Viltrox AF 16mm f/1.8 and the Viltrox AF 20mm f/2.8?
The Viltrox AF 16mm f/1.8 is 16mm f/1.8 prime, full-frame; the Viltrox AF 20mm f/2.8 is 20mm f/2.8 prime, full-frame. Both fit the Sony E mount.

Which is better in low light, the Viltrox AF 16mm f/1.8 or the Viltrox AF 20mm f/2.8?
The Viltrox AF 16mm f/1.8 — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2.8 of the other.

Do the Viltrox AF 16mm f/1.8 and Viltrox AF 20mm f/2.8 fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C).

More Sony E comparisons: Sigma 16mm f/1.4 DC DN Contemporary vs Sony E 15mm f/1.4 G · Sigma 50mm f/1.4 DG DN Art vs Sony FE 50mm f/1.4 GM · Sony FE 40mm f/2.5 G vs Sony FE 50mm f/2.5 G · Sony FE 20-70mm f/4 G vs Tamron 20-40mm f/2.8 Di III VXD · all Sony E lenses · all comparisons