Nikon NIKKOR Z 40mm f/2 vs Yongnuo YN 50mm f/1.8Z II DF DSM
Both are Nikon Z mount primes for standard prime and budget — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Nikon NIKKOR Z 40mm f/2 | Yongnuo YN 50mm f/1.8Z II DF DSM |
|---|---|---|
| Focal length | 40mm | 50mm |
| Max aperture | f/2 | f/1.8 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | Nikon Z | Nikon Z |
Which should you buy?
- the Yongnuo YN 50mm f/1.8Z II DF DSM opens wider (f/1.8) — brighter in low light and more background blur
- the Nikon NIKKOR Z 40mm f/2 (40mm) is wider — more in the frame for street and interiors; the Yongnuo YN 50mm f/1.8Z II DF DSM (50mm) is tighter — more reach and compression for portraits
- the Nikon NIKKOR Z 40mm f/2 is first-party (Nikon) for guaranteed full autofocus and in-camera corrections; the Yongnuo YN 50mm f/1.8Z II DF DSM is third-party — usually the value pick
Where to buy
Nikon NIKKOR Z 40mm f/2See price on Amazon
Yongnuo YN 50mm f/1.8Z II DF DSMSee price on Amazon
FAQ
What's the difference between the Nikon NIKKOR Z 40mm f/2 and the Yongnuo YN 50mm f/1.8Z II DF DSM?
The Nikon NIKKOR Z 40mm f/2 is 40mm f/2 prime, full-frame; the Yongnuo YN 50mm f/1.8Z II DF DSM is 50mm f/1.8 prime, full-frame. Both fit the Nikon Z mount.
Which is better in low light, the Nikon NIKKOR Z 40mm f/2 or the Yongnuo YN 50mm f/1.8Z II DF DSM?
The Yongnuo YN 50mm f/1.8Z II DF DSM — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2 of the other.
Do the Nikon NIKKOR Z 40mm f/2 and Yongnuo YN 50mm f/1.8Z II DF DSM 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).
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