VILTROX vs YNLENS YONGNUO YN50mm
Updated July 2026 — VILTROX wins on autofocus and optics, YNLENS YONGNUO YN50mm wins on price and compatibility.
The VILTROX 25mm f1.7 offers superior optical quality and advanced autofocus features, making it a better choice for serious photographers. However, the YONGNUO 50mm f1.8 provides great value at a lower price.
Why VILTROX is better
Optics
VILTROX has a more complex optical design with 12 elements.
Autofocus
VILTROX features advanced STM autofocus.
Weight
VILTROX is lighter at 170g compared to YONGNUO's 203g.
Why YNLENS YONGNUO YN50mm is better
Price
YONGNUO is significantly cheaper at $102.
Compatibility
YONGNUO supports a wide range of Nikon F-Mount cameras.
Simplicity
YONGNUO's simpler design is easier for casual users.
Overall score
Specifications
| Spec | VILTROX | YNLENS YONGNUO YN50mm |
|---|---|---|
| Aperture | f1.7 | f1.8 |
| Elements | 12 in 10 | 6 in 5 |
| Blades | 9 | 7 |
| Focus Type | STM | Face/Eye |
| Mount | Sony E | Nikon F |
Dimension comparison
Overview of the VILTROX 25mm f1.7 and YONGNUO YN50mm 50mm f/1.8
The VILTROX 25mm f1.7 lens is designed specifically for Sony E-Mount cameras, while the YONGNUO YN50mm 50mm f/1.8 lens is tailored for Nikon F-Mount cameras. Each lens offers a large aperture for creative photography, but there are key differences in their specifications and intended applications. With the VILTROX priced at $176.00 and the YONGNUO at $102.00, the latter is about 42% cheaper, appealing to budget-conscious photographers.
Aperture and Image Quality
The VILTROX features a large f1.7 aperture, which allows for beautiful natural bokeh and effective subject highlighting. It has 9 aperture blades that contribute to its artistic blur effect. The YONGNUO, on the other hand, has a slightly larger f1.8 aperture with 7 blades, which also provides impressive low-light performance and beautiful background blur. While the VILTROX's f1.7 aperture may give it a slight edge in low-light conditions, both lenses excel in creating visually striking images with creamy backgrounds.
Autofocus Features
The VILTROX boasts efficient and reliable autofocus powered by its built-in STM stepping motor, supporting eye and face detection for enhanced shooting responsiveness. This feature is particularly beneficial for portrait photographers who need quick focus on subjects. Conversely, the YONGNUO includes a face/eye recognition function, allowing for automatic focus adjustments based on the subject’s face or eyes. While both lenses offer autofocus capabilities, the VILTROX's STM motor may provide a more advanced and responsive experience.
Optical Design
In terms of optical design, the VILTROX lens is built with 12 elements in 10 groups, including special elements like an ED lens and aspherical lenses, aimed at reducing distortion and improving image quality. The YONGNUO lens has a simpler structure with 6 elements in 5 groups, which may suffice for general photography but could lack the advanced optics found in the VILTROX. This difference means that the VILTROX may produce sharper and clearer images with less aberration, making it a solid choice for serious photographers.
Portability and Weight
When it comes to portability, the VILTROX weighs only 170 grams, making it a lightweight option for photographers on the go. The YONGNUO, while slightly heavier at 203 grams, is still compact and manageable for everyday use. Both lenses are designed to be travel-friendly, but the VILTROX edges out in terms of weight, making it ideal for spontaneous shoots in various environments.
Compatibility and Versatility
The VILTROX is compatible with a range of Sony E-Mount cameras, including popular models such as the A7C, A7RII, and A6600. This wide compatibility ensures that users can effectively use the lens across various camera bodies. On the other hand, the YONGNUO is well-suited for a broad array of Nikon F-Mount cameras, including the D3000 and D5000 series. While both lenses cover a significant range of compatible cameras, the choice of lens will depend heavily on the user's existing camera system.
Price Consideration
The VILTROX is priced at $176.00, while the YONGNUO is available for $102.00. This makes the YONGNUO about 42% cheaper than the VILTROX, which could be a major deciding factor for budget-conscious photographers or those just starting their photography journey. While the VILTROX offers advanced features, the price difference may lead some to prioritize cost while still seeking quality performance from the YONGNUO.
Which should you buy?
Choosing between the VILTROX 25mm f1.7 and the YONGNUO YN50mm 50mm f/1.8 ultimately depends on your specific needs and camera system. If you are a Sony E-Mount user looking for advanced autofocus features and superior optical quality, the VILTROX is a compelling choice. However, if you're seeking a budget-friendly option that still delivers solid performance for Nikon F-Mount cameras, the YONGNUO offers great value. Weighing the differences in price, compatibility, and features will help guide you to the right decision for your photography needs.

