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Nikon NIKKOR Z vs YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus

Updated July 2026 — Nikon NIKKOR Z wins on autofocus and image quality, YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus wins on price and weight.

The Nikon NIKKOR Z 40mm f/2 offers superior image quality and advanced features, while the YONGNUO YN50mm F1.8 is a budget-friendly option for Canon users.

Why Nikon NIKKOR Z is better

Image Quality

Nikon lens provides superior optical performance.

Autofocus

Nikon's fast and quiet AF system outperforms YONGNUO.

Build Quality

Nikon lens is more durable and compact.

Why YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus is better

Price

YONGNUO lens is significantly cheaper.

Compatibility

YONGNUO works with a wider range of Canon cameras.

Weight

YONGNUO lens is lighter and easier to carry.

Overall score

Nikon NIKKOR Z
85
YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus
65

Specifications

SpecNikon NIKKOR ZYONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus
Aperturef/2f/1.8
CompatibilityNikon ZCanon EF
Focus ModesAuto/ManualAuto/Manual
BokehExcellentGood
Max Focal Length40mm50mm

Dimension comparison

Nikon NIKKOR ZYONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus

Overview of the Nikon NIKKOR Z 40mm f/2 and YONGNUO YN50mm F1.8

The Nikon NIKKOR Z 40mm f/2 is priced at $276.95, while the YONGNUO YN50mm F1.8 comes in at a considerably lower $82.00, making it about 70% cheaper. This substantial price difference reflects their distinct features and target markets. The NIKKOR Z 40mm f/2 is designed for Nikon Z series mirrorless cameras, offering premium performance in a compact package, whereas the YONGNUO YN50mm F1.8 is compatible with Canon EF mount cameras, making it appealing for budget-conscious Canon users seeking a versatile lens.

Build Quality and Design

In terms of build quality, the Nikon NIKKOR Z 40mm f/2 offers a compact and lightweight design, ideal for on-the-go shooting. Its construction emphasizes durability while maintaining portability. Conversely, the YONGNUO YN50mm F1.8, while not as compact as the Nikon, still features a practical design with a focus distance indicator at 0.45 meters, aiding in precise measurements during photography. The use of gold plating on YONGNUO's metal contacts enhances signal conductivity and corrosion resistance, adding to its reliability.

Aperture and Image Quality

The Nikon NIKKOR Z 40mm f/2 boasts a maximum aperture of f/2, providing excellent subject isolation and a beautiful background blur, enhanced by its 9 rounded blade diaphragm. This creates a natural bokeh effect, especially beneficial for portrait and candid photography. The YONGNUO YN50mm F1.8, with its larger aperture of f/1.8, allows for even more light, making it a strong contender for low-light situations. However, while it provides fun photographic experiences with its virtual background capabilities, the overall image quality may not match the premium optics of the Nikon lens.

Autofocus Performance

The autofocus performance of the Nikon NIKKOR Z 40mm f/2 is exceptional, featuring a fast and quiet AF system that minimizes focus breathing during recording, making it an excellent choice for videographers. The YONGNUO YN50mm F1.8 supports both auto focus and manual focus modes, allowing versatility for different shooting styles. However, it lacks the advanced AF capabilities of the Nikon lens, which could be a critical factor for users who prioritize precise focus in their photography or videography.

Compatibility and Versatility

The Nikon NIKKOR Z 40mm f/2 is specifically designed for FX and DX format Nikon Z series mirrorless cameras. On DX-format cameras, it offers a field of view equivalent to 60mm, making it versatile for various photography styles, including landscapes and street photography. In contrast, the YONGNUO YN50mm F1.8 is compatible with full-frame and APS-C format Canon cameras, making it a solid choice for Canon users looking for a budget-friendly lens that still performs well across different shooting scenarios.

Price and Value Proposition

With the Nikon NIKKOR Z 40mm f/2 priced at $276.95 and the YONGNUO YN50mm F1.8 at just $82.00, the YONGNUO lens is about 70% less expensive. This significant price gap makes the YONGNUO an attractive option for amateur photographers or those just starting out. However, for professionals or serious enthusiasts, the Nikon lens may offer superior value in terms of build quality, optical performance, and advanced features, justifying the higher price.

User Experience and Reviews

While user reviews for both lenses may vary, the Nikon NIKKOR Z 40mm f/2 is often praised for its exceptional image quality and performance, especially in portrait and street photography. Users appreciate its fast autofocus and compact design, making it an ideal companion for creative journeys. On the other hand, the YONGNUO YN50mm F1.8 is recognized for its affordability and versatility, appealing to those who want a reliable lens without breaking the bank. However, some users may note limitations in autofocus speed and overall optical quality compared to premium options like the Nikon lens.

Which should you buy?

Choosing between the Nikon NIKKOR Z 40mm f/2 and the YONGNUO YN50mm F1.8 ultimately depends on your camera system and budget. If you own a Nikon Z series mirrorless camera and prioritize high image quality, advanced autofocus, and a premium build, the Nikon lens is the clear choice, despite its higher price. However, if you're a Canon user seeking a budget-friendly lens that still offers versatility and decent performance, the YONGNUO lens is an excellent option that won't strain your wallet. Consider your specific needs and shooting style before making a final decision.