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Viltrox AF 40mm f/2.5 vs Yongnuo YN 35mm f/2S DF DSM

Both are Sony E mount primes for everyday and street — 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

SpecViltrox AF 40mm f/2.5Yongnuo YN 35mm f/2S DF DSM
Focal length40mm35mm
Max aperturef/2.5f/2
Typeprimeprime
Coveragefull-framefull-frame
MountSony ESony E

Which should you buy?

Where to buy

VILTROX 40mm F2.5 FE Mount Lens, AF 40mm f2.5 E Full Frame Auto Focus Lens

Viltrox AF 40mm f/2.5See price on Amazon

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

YONGNUO YN35mm F2S DF DSM Auto Focus Wide Angle Prime Lens for Sony, F2 Large Aperture Full Frame APS-C for Sony E Mount

Yongnuo YN 35mm f/2S DF DSMSee 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 40mm f/2.5 and the Yongnuo YN 35mm f/2S DF DSM?
The Viltrox AF 40mm f/2.5 is 40mm f/2.5 prime, full-frame; the Yongnuo YN 35mm f/2S DF DSM is 35mm f/2 prime, full-frame. Both fit the Sony E mount.

Which is better in low light, the Viltrox AF 40mm f/2.5 or the Yongnuo YN 35mm f/2S DF DSM?
The Yongnuo YN 35mm f/2S DF DSM — its f/2 maximum aperture lets in more light and gives more background blur than the f/2.5 of the other.

Do the Viltrox AF 40mm f/2.5 and Yongnuo YN 35mm f/2S DF DSM 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:

More Sony E comparisons: Sony FE 14mm f/1.8 GM vs Sony FE 24mm f/1.4 GM · Viltrox AF 16mm f/1.8 vs Samyang AF 14mm f/2.8 FE · Viltrox AF 50mm f/2.0 vs Zeiss Loxia 50mm f/2 · Viltrox AF 50mm f/2.0 vs Yongnuo YN 50mm f/1.8S DA DSM · all Sony E lenses · all comparisons

Viltrox AF 40mm f/2.5Affiliate linkSee price on Amazon

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