Canon RF vs Viltrox
Updated July 2026 — Canon RF wins on build and autofocus, Viltrox wins on compatibility and price.
The Canon RF 50mm F1.8 STM Lens offers superior image quality and is ideal for EOS R-Series users, while the Viltrox 25mm F1.7 E is a more affordable and lightweight option for Sony users.
Why Canon RF is better
Image Quality
Canon lens provides sharper images.
Brand Reputation
Canon is a well-established brand in photography.
Aperture Control
Canon lens has better overall performance in various lighting.
Why Viltrox is better
Price
Viltrox lens is $43 cheaper.
Weight
Viltrox lens is lighter at 170g.
Compatibility
Viltrox lens works with a wider range of Sony cameras.
Overall score
Specifications
| Spec | Canon RF | Viltrox |
|---|---|---|
| Aperture | f/1.8 | f/1.7 |
| Weight | 200g | 170g |
| Price | $219.00 | $176.00 |
| Autofocus | STM | STM |
| Brand | Canon | VILTROX |
Dimension comparison
Overview of the Canon RF 50mm F1.8 STM Lens
The Canon RF 50mm F1.8 STM Lens is a compact and lightweight lens tailored for creative photography. With its wide f/1.8 aperture, this lens excels in producing sharp images with beautiful background blur, making it ideal for portraits and various shooting scenarios. Priced at $219.00, it stands out as a versatile option for EOS R-Series cameras. The lens features an advanced STM motor for smooth, fast, and nearly silent autofocus, which enhances the shooting experience by ensuring sharp focus without distracting noise. Additionally, the Super Spectra Coating helps reduce flare and ghosting, further enhancing image quality.
Overview of the Viltrox 25mm F1.7 E
The Viltrox 25mm F1.7 E is a lightweight and travel-friendly lens designed for Sony E-mount cameras. At a price of $176.00, it is about 17% cheaper than the Canon RF 50mm F1.8 STM Lens. This lens features a bright f/1.7 maximum aperture, which is beneficial for low-light conditions and provides greater control over depth of field. Weighing only 170 grams, it is ideal for everyday use and travel. The Viltrox 25mm also incorporates an STM stepper motor for quiet autofocus, which is particularly advantageous for video recording. With support for face and eye recognition autofocus, it makes capturing sharp images and videos effortless.
Autofocus Capabilities
When it comes to autofocus, both lenses are equipped with advanced technologies designed to enhance shooting efficiency. The Canon RF 50mm F1.8 STM Lens features an STM motor that provides smooth, fast, and quiet autofocus, making it suitable for both photography and videography. In contrast, the Viltrox 25mm F1.7 E also uses an STM stepper motor, ensuring a quiet autofocus experience that does not interfere with audio during video shoots. Both lenses support rapid focus adjustments, but the Viltrox lens claims additional advantages with its face and eye recognition capabilities, making it particularly effective for portrait photography and videography.
Aperture and Low-Light Performance
In terms of aperture and low-light performance, the Viltrox 25mm F1.7 E slightly edges out the Canon RF 50mm F1.8 STM Lens. With a maximum aperture of f/1.7, the Viltrox lens allows more light to enter compared to the f/1.8 aperture of the Canon lens. This difference, while subtle, can be significant in low-light environments. Both lenses excel at providing beautiful background blur, but the Viltrox's slightly wider aperture could offer an advantage for users seeking to work in challenging lighting conditions or aiming for a shallower depth of field for creative effects.
Build Quality and Design
The build quality and design of both lenses cater to the needs of photographers seeking portability and ease of use. The Canon RF 50mm F1.8 STM Lens is compact and lightweight, making it easy to carry around for extended periods. Meanwhile, the Viltrox 25mm F1.7 E is even lighter at just 170 grams, which enhances its appeal for travel and everyday shooting. Both lenses feature a modern design that aligns well with the sleek aesthetics of contemporary cameras. However, the Viltrox lens's lightweight design may make it the preferable choice for those who prioritize minimal weight in their gear.
Compatibility and Versatility
Compatibility plays a crucial role in selecting a lens, especially for users with specific camera systems. The Canon RF 50mm F1.8 STM Lens is designed exclusively for EOS R-Series cameras, ensuring seamless integration and optimal performance within that system. On the other hand, the Viltrox 25mm F1.7 E is compatible with a wider range of Sony E-mount cameras, including popular models like the ZV-E10 II and A6700. This broader compatibility can be a deciding factor for users who own multiple Sony cameras or are looking for a versatile lens that can adapt to various shooting situations.
Price Comparison
Price is often a significant consideration when choosing a lens, and in this comparison, the Viltrox 25mm F1.7 E is the more economical option at $176.00, which is about $43.00 less than the Canon RF 50mm F1.8 STM Lens priced at $219.00. For photographers on a budget or those seeking value for money, the Viltrox lens offers compelling features without breaking the bank. Moreover, with an average price of $172.79 over the past 90 days, the Viltrox lens demonstrates stability in pricing, making it a wise investment for potential buyers.
Which should you buy?
Choosing between the Canon RF 50mm F1.8 STM Lens and the Viltrox 25mm F1.7 E ultimately depends on your specific needs and camera system. The Canon lens is an excellent choice for EOS R-Series users seeking a reliable and versatile lens for portrait and general photography. However, if you're using a Sony E-mount camera and prioritize a lightweight design with a slightly better low-light performance and a lower price, the Viltrox lens may be the ideal option. Each lens offers unique advantages, so your decision should align with your photographic style and equipment preferences.