Compare lenses

Nikon Z 40mm f/2 vs Viltrox AF 40mm f/2.5 Air

The Nikon Z 40mm f/2 and the Viltrox AF 40mm f/2.5 Air side by side, computed from this guide's catalogue.

Which to pick

Pick the Nikon Z 40mm f/2 if you want a brighter f/2 (0.6 stops more light), for dim light and softer backgrounds. Pick the Viltrox AF 40mm f/2.5 Air if you want a fit on more cameras (82 against 16 in this guide).

Still torn? Ask the guide about the Nikon Z 40mm f/2 and the Viltrox AF 40mm f/2.5 Air

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
SpecNikon Z 40mm f/2Viltrox AF 40mm f/2.5 Air
MakerNikonViltrox
Focal length40mm (prime)40mm (prime)
Full-frame equivalent40mm40mm
Maximum aperturef/2brighterf/2.5
Made forFull frameFull frame
MountsNikon ZSony E, Nikon Z, L-Mount
Stabilisednono
Autofocusyesyes
Weight170 glighter180 g
Cameras it fits16 in this guide82 in this guidefits more cameras

Focal range, in full-frame terms

142435508513520040080040mm equiv.Nikon
Nikon Z 40mm f/2: 40mm.
142435508513520040080040mm equiv.Viltrox
Viltrox AF 40mm f/2.5 Air: 40mm.

Aperture

f/2
Nikon Z 40mm f/2: f/2 wide open.
f/2.5
Viltrox AF 40mm f/2.5 Air: f/2.5 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

Nikon · 48°Viltrox · 48°
How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

16 cameras in this guide take both, so either works on the same body. In all, the Nikon Z 40mm f/2 fits 16 and the Viltrox AF 40mm f/2.5 Air 82.

Nikon Z 40mm f/2

and 6 more

Viltrox AF 40mm f/2.5 Air

and 72 more

On their own pages