VILTROX vs VILTROX AF
Updated July 2026 — VILTROX wins on weight and price, VILTROX AF wins on length and aperture.
The VILTROX 25mm f1.7 excels in low-light performance and image quality, while the VILTROX AF 28mm F4.5 offers a lightweight and budget-friendly option.
Why VILTROX is better
Low-light Performance
F1.7 aperture allows for better low-light shooting.
Image Quality
12 elements in 10 groups for superior image clarity.
Autofocus Features
Advanced STM motor supports eye and face detection.
Why VILTROX AF is better
Price
$99.00 is significantly cheaper.
Weight
Only 60 grams, making it very portable.
Compact Design
15.3mm thick, ideal for travel.
Overall score
Specifications
| Spec | VILTROX | VILTROX AF |
|---|---|---|
| Autofocus | STM Motor | VCM Motor |
| Compatibility | Sony E-Mount | Fuji X-Mount |
| Bokeh | Excellent | Good |
| Image Quality | High Definition | Sharp |
| Firmware Upgrade | Micro USB | USB-C |
Dimension comparison
Overview of the VILTROX 25mm f1.7 and VILTROX AF 28mm F4.5
The VILTROX 25mm f1.7 is priced at $176.00, while the VILTROX AF 28mm F4.5 is significantly cheaper at $99.00, making it about 44% less expensive. This price difference reflects their distinct functionalities and target users. The 25mm lens is designed for a broader range of Sony E-mount cameras, offering a large aperture for low-light performance and beautiful bokeh. On the other hand, the 28mm lens is tailored for Fuji X-mount cameras, emphasizing a lightweight design ideal for travel and casual shooting.
Image Quality Comparison
The VILTROX 25mm f1.7 boasts an impressive F1.7 large aperture, allowing for exceptional low-light performance and a beautifully blurred background due to its 9 aperture blades. This lens features an optical structure of 12 elements in 10 groups, ensuring high-definition image quality. In contrast, the VILTROX AF 28mm F4.5 utilizes a simpler design with 6 elements in 6 groups but still includes 2 ED and 2 aspherical lenses to deliver sharp, vibrant images. While both lenses promise high-quality images, the 25mm may cater more to those seeking artistic effects and depth of field.
Autofocus Performance
Both lenses are equipped with efficient autofocus systems, but they cater to different needs. The VILTROX 25mm f1.7 features a built-in STM stepping motor that supports advanced functions like eye and face detection, enabling precise tracking and response. The VILTROX AF 28mm F4.5, on the other hand, employs a VCM motor for quick and effortless shooting, also supporting face and eye recognition. While the autofocus systems are efficient in both lenses, the 25mm's advanced features might benefit those who prioritize precision in dynamic shooting situations.
Build Quality and Design
When it comes to build quality, the VILTROX 25mm f1.7 weighs 170 grams and is compact, designed for versatility and ease of use in various shooting conditions. Its robust optical design includes a micro USB interface for firmware upgrades, enhancing its long-term usability. The VILTROX AF 28mm F4.5 is much lighter at just 60 grams and only 15.3mm thick, making it the lightest Viltrox lens available. Its innovative slide cap design not only protects the lens but also adds a fun element to photography. Thus, if portability is your main concern, the 28mm lens might be more appealing.
Target Audience and Use Cases
The VILTROX 25mm f1.7 is well-suited for photographers who require a versatile lens for various shooting scenarios, especially in low-light environments. It caters to a wide range of Sony E-mount cameras, making it a versatile addition to any camera bag. The VILTROX AF 28mm F4.5, however, appeals more to casual and travel photographers who prioritize a lightweight setup for on-the-go shooting. Its compact design and unique characteristics make it ideal for vlogging and everyday photography, particularly for those using Fuji X-mount cameras.
Price and Value Proposition
With the VILTROX 25mm f1.7 priced at $176.00 and the VILTROX AF 28mm F4.5 at $99.00, there is a notable price gap of $77.00. This makes the 28mm lens about 44% cheaper, which may appeal to budget-conscious buyers. However, the additional features and wider aperture of the 25mm lens could justify its higher price for those needing advanced capabilities. The value proposition ultimately depends on the specific needs and priorities of the photographer.
Brand Reputation and Support
Both lenses come from VILTROX, a brand known for its commitment to quality in the photography community. The VILTROX 25mm f1.7 has a solid reputation for delivering high-quality images and reliable autofocus, favored by both amateur and professional photographers alike. The 28mm F4.5 is also gaining traction as a favorite among Fuji users, especially for its innovative features and lightweight design. VILTROX provides firmware upgrades for both lenses, ensuring continued performance improvements and support.
Which should you buy?
Choosing between the VILTROX 25mm f1.7 and the VILTROX AF 28mm F4.5 ultimately depends on your specific photography needs and budget. If you prioritize low-light performance, artistic bokeh, and a comprehensive autofocus system, the 25mm f1.7 is likely the better choice despite its higher price. Conversely, if you seek a lightweight, portable lens for casual shooting or vlogging with Fuji X-mount cameras, the 28mm F4.5 offers excellent value at a significantly lower price. Consider your needs carefully to make the best choice for your photography style.

