Viltrox AF 20mm f/2.8 vs Tamron 20mm f/2.8 Di III OSD M1:2

Both are Sony E mount primes for wide-angle and compact — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · Sony E mount · prices change — check the retailer

Spec	Viltrox AF 20mm f/2.8	Tamron 20mm f/2.8 Di III OSD M1:2
Focal length	20mm	20mm
Max aperture	f/2.8	f/2.8
Type	prime	prime
Coverage	full-frame	full-frame
Mount	Sony E	Sony E

Which should you buy?

Where to buy

VILTROX 20mm f2.8 FE for Sony, AF 20mm f/2.8 FE Lens for Sony E

Viltrox AF 20mm f/2.8See price on Amazon

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Tamron 20mm f/2.8 Di III OSD M1:2 Lens for Sony Full Frame/APS-C E-Mount | 20mm f/2.8 lens with 1:2 magnification and OS

Tamron 20mm f/2.8 Di III OSD M1:2See price on Amazon

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FAQ

What's the difference between the Viltrox AF 20mm f/2.8 and the Tamron 20mm f/2.8 Di III OSD M1:2?
The Viltrox AF 20mm f/2.8 is 20mm f/2.8 prime, full-frame; the Tamron 20mm f/2.8 Di III OSD M1:2 is 20mm f/2.8 prime, full-frame. Both fit the Sony E mount.

Do the Viltrox AF 20mm f/2.8 and Tamron 20mm f/2.8 Di III OSD M1:2 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).

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

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Viltrox AF 20mm f/2.8Affiliate linkSee price on Amazon