FitMyLensthe lens-by-mount reference

Viltrox AF 20mm f/2.8 vs TTArtisan AF 27mm f/2.8 E

Both are Sony E mount primes for small-footprint — 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 20mm f/2.8TTArtisan AF 27mm f/2.8 E
Focal length20mm27mm
Max aperturef/2.8f/2.8
Typeprimeprime
Coveragefull-frameAPS-C
MountSony ESony E

Which should you buy?

Where to buy

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

Check the TTArtisan AF 27mm f/2.8 E price on Amazon →

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FAQ

What's the difference between the Viltrox AF 20mm f/2.8 and the TTArtisan AF 27mm f/2.8 E?
The Viltrox AF 20mm f/2.8 is 20mm f/2.8 prime, full-frame; the TTArtisan AF 27mm f/2.8 E is 27mm f/2.8 prime, APS-C. Both fit the Sony E mount.

Do the Viltrox AF 20mm f/2.8 and TTArtisan AF 27mm f/2.8 E 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). Note the TTArtisan AF 27mm f/2.8 E is APS-C-only and won't fill a full-frame sensor.

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 14mm f/1.8 GM vs Samyang AF 24mm f/1.8 FE · Sony FE 40mm f/2.5 G vs Sony FE 50mm f/2.5 G · all Sony E lenses · all comparisons