VILTROX vs YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus
Updated July 2026 — VILTROX wins on autofocus and aperture, YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus wins on price and weight.
The VILTROX 25mm F1.7 E offers superior performance and features compared to the YONGNUO YN50mm F1.8, making it the better choice for serious photographers. However, the YONGNUO is a great budget option.
Why VILTROX is better
Aperture
VILTROX has a larger f/1.7 aperture for better low-light performance.
Autofocus
VILTROX features advanced STM autofocus technology.
Close Focus
VILTROX has a minimum focusing distance of 0.3m.
Why YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus is better
Price
YONGNUO is significantly cheaper at $82.
Weight
YONGNUO is lighter and more portable.
Compatibility
YONGNUO is compatible with a wider range of Canon cameras.
Overall score
Specifications
| Spec | VILTROX | YONGNUO YN50mm F1.8 Lens Large Aperture Auto Focus |
|---|---|---|
| Max Aperture | f/1.7 | f/1.8 |
| Focal Length | 25mm | 50mm |
| Min Focus Dist. | 0.3m | 0.45m |
| Autofocus Type | STM | Standard |
| Lens Elements | 12 elements | 5 groups |
Dimension comparison
Overview of the VILTROX 25mm F1.7 E and YONGNUO YN50mm F1.8 Lens
The VILTROX 25mm F1.7 E and the YONGNUO YN50mm F1.8 Lens represent two distinct options for photographers seeking versatile lenses. The VILTROX lens is priced at $176.00, while the YONGNUO offers a more budget-friendly option at $82.00, making it about 53% cheaper. Both lenses boast impressive features aimed at enhancing photographic experiences, but they cater to different camera systems and user needs.
Design and Build Quality
The design and build quality of a lens play a significant role in its usability and performance. The VILTROX 25mm F1.7 E features a thoughtful design that includes an extended lens hood to protect against stray light, which enhances image contrast. Its construction includes advanced optical elements, ensuring durability and reliable performance. On the other hand, the YONGNUO YN50mm F1.8 also emphasizes practicality with its multi-coated lenses that improve transmittance. With a focus distance indicator at 0.45 meter, it offers convenience for measuring shooting distances. Both lenses incorporate metal contacts to enhance signal conductivity, but the VILTROX appears to offer additional features that might attract professional users.
Aperture and Low-Light Performance
When it comes to aperture and low-light shooting, the VILTROX 25mm F1.7 E takes the lead with a bright f/1.7 aperture. This allows for exceptional low-light performance and creates beautiful background blur (bokeh), making it ideal for portraits and creative shots. The YONGNUO YN50mm F1.8, while slightly less impressive with an f/1.8 aperture, still offers a large aperture that allows for fun background effects. The difference in maximum aperture is minimal, but the VILTROX’s slightly larger aperture may provide an edge for photographers who frequently shoot in challenging lighting conditions.
Focal Length and Versatility
The VILTROX 25mm F1.7 E has a focal length equivalent to 38mm on full-frame cameras, making it versatile for a variety of photography styles from landscapes to portraits. This natural perspective is similar to the human eye, enhancing its usability for different shooting scenarios. In contrast, the YONGNUO YN50mm F1.8, with a 50mm focal length, is traditionally favored for portrait photography. While both lenses serve different purposes, the VILTROX's focal length may provide a broader range of applications, appealing to photographers who wish to capture both wide scenes and intimate details.
Autofocus Performance
Autofocus performance can significantly impact the shooting experience. The VILTROX 25mm F1.7 E is equipped with a new STM motor that delivers fast, precise, and near-silent autofocus, making it suitable for both photography and video recording. Additionally, its low focus breathing ensures smooth transitions during focus changes. Conversely, the YONGNUO YN50mm F1.8 supports both auto and manual focus modes, providing flexibility for different shooting styles. However, it lacks the advanced autofocus technology found in the VILTROX, which may result in less optimal performance in dynamic shooting environments.
Close Focusing Capability
Close focusing capability is a crucial feature for photographers who enjoy capturing detailed shots. The VILTROX 25mm F1.7 E boasts a minimum focusing distance of just 0.3m (33cm), allowing for stunning close-up photography with intricate details. This feature enhances its versatility in various shooting scenarios. The YONGNUO YN50mm F1.8, while not explicitly stated in the specifications, typically has a minimum focusing distance around 0.45m. This difference in close focusing distances means that the VILTROX is more adept at capturing fine details, making it a preferable choice for macro-style photography.
Compatibility and Use Cases
Compatibility is a significant factor when choosing a lens. The VILTROX 25mm F1.7 E is specifically designed for Sony E-mount cameras, such as the a6400, a6500, and a6600, making it an ideal choice for Sony users looking for a reliable prime lens. In contrast, the YONGNUO YN50mm F1.8 is compatible with Canon EF mount cameras, appealing to Canon users. This distinction in compatibility means that your camera system will largely determine which lens is suitable for you. Each lens is tailored to its respective brand, ensuring optimal performance and integration with camera features.
Price Consideration
Price is a critical factor for many photographers. The VILTROX 25mm F1.7 E is priced at $176.00, while the YONGNUO YN50mm F1.8 is much more affordable at $82.00. This significant price difference of about 53% makes the YONGNUO a compelling option for budget-conscious photographers or beginners who are just starting out. However, the investment in the VILTROX may be justified for those seeking advanced features and superior performance, especially in low-light conditions.
Which should you buy?
Choosing between the VILTROX 25mm F1.7 E and the YONGNUO YN50mm F1.8 ultimately depends on your specific needs and camera compatibility. If you own a Sony E-mount camera and require a high-performance lens that excels in low light, offers fast autofocus, and provides excellent close focusing capabilities, the VILTROX 25mm F1.7 E is worth the investment at $176.00. However, if you are a Canon user looking for a budget-friendly, versatile lens with good performance, the YONGNUO YN50mm F1.8 at $82.00 presents a solid choice.

