FitMyLensthe lens-by-mount reference

Viltrox AF 28mm f/1.8 vs Viltrox AF 40mm f/2.5

Both are Nikon Z mount primes for street and everyday — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-06-21 · Nikon Z mount · prices change — check the retailer

SpecViltrox AF 28mm f/1.8Viltrox AF 40mm f/2.5
Focal length28mm40mm
Max aperturef/1.8f/2.5
Typeprimeprime
Coveragefull-framefull-frame
MountNikon ZNikon Z

Which should you buy?

Where to buy

Check the Viltrox AF 28mm f/1.8 price on Amazon →

Check the Viltrox AF 40mm f/2.5 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 28mm f/1.8 and the Viltrox AF 40mm f/2.5?
The Viltrox AF 28mm f/1.8 is 28mm f/1.8 prime, full-frame; the Viltrox AF 40mm f/2.5 is 40mm f/2.5 prime, full-frame. Both fit the Nikon Z mount.

Which is better in low light, the Viltrox AF 28mm f/1.8 or the Viltrox AF 40mm f/2.5?
The Viltrox AF 28mm f/1.8 — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2.5 of the other.

Do the Viltrox AF 28mm f/1.8 and Viltrox AF 40mm f/2.5 fit the same camera?
Yes — both are Nikon Z mount lenses, so they fit Nikon Z series (Z6/Z7/Z8/Z9 full-frame, Z50/Zfc APS-C).

More Nikon Z comparisons: Nikon NIKKOR Z 20mm f/1.8 S vs Viltrox AF 16mm f/1.8 · Nikon NIKKOR Z 24-70mm f/2.8 S vs Nikon NIKKOR Z 28-75mm f/2.8 · Nikon NIKKOR Z 26mm f/2.8 vs Nikon NIKKOR Z 28mm f/2.8 · Nikon NIKKOR Z 35mm f/1.8 S vs Viltrox AF 35mm f/1.8 · all Nikon Z lenses · all comparisons