Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens vs VILTROX
Updated July 2026 — Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens wins on price and focal length, VILTROX wins on weight.
The Canon RF50mm F1.8 STM Lens offers superior build quality and features, while the VILTROX 25mm F1.7 E provides better value for budget-conscious photographers.
Why Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens is better
Better Aperture
Canon has a larger f/1.8 aperture for low-light performance.
Brand Reputation
Canon is a well-established brand in photography.
Control Ring
Canon lens includes a control ring for manual adjustments.
Why VILTROX is better
Lower Price
VILTROX is priced at $176, making it more affordable.
Wider Focal Length
VILTROX offers a 38mm equivalent focal length.
USB-C Port
VILTROX includes a USB-C port for firmware updates.
Overall score
Specifications
| Spec | Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens | VILTROX |
|---|---|---|
| Brand | Canon | VILTROX |
| Max Aperture | f/1.8 | f/1.7 |
| Focal Length | 50mm | 25mm |
| Weight | 200g | 250g |
| Compatibility | EOS R | Sony E |
Dimension comparison
Overview of the Canon RF50mm F1.8 STM Lens
The Canon RF50mm F1.8 STM Lens is designed for users of EOS R series mirrorless cameras. Priced at $219.00, this lens offers a versatile focal length that excels in various photography scenarios. Its compact design makes it ideal for on-the-go shooting, while the large f/1.8 aperture enhances low-light performance and allows for beautiful background blur.
This lens features a stepping motor that provides smooth and quiet autofocus, an essential feature for videographers and photographers alike. The optimized lens placement and coatings help deliver outstanding color balance, minimizing ghosting and flare. With its ability to cater to a wide range of photographic styles, the Canon RF50mm F1.8 is a solid choice for both amateurs and professionals.
Overview of the VILTROX 25mm F1.7 E
The VILTROX 25mm F1.7 E is a prime lens tailored for Sony E-mount users, priced at $176.00. This lens offers a 38mm equivalent focal length, making it a versatile option for various photography styles, including street photography and portraits. The bright f/1.7 aperture ensures excellent low-light performance while providing beautiful background blur.
Featuring a complex optical design with 12 elements in 10 groups, including special elements to minimize chromatic aberrations and distortion, the VILTROX 25mm F1.7 E promises high-quality images. Additionally, its fast autofocus capabilities and thoughtful design details, such as a USB-C upgrade port, make it a competitive choice for those looking to enhance their photographic toolkit.
Price Comparison
When comparing prices, the VILTROX 25mm F1.7 E is about 17% cheaper than the Canon RF50mm F1.8 STM Lens, making it a more budget-friendly option at $176.00 versus $219.00. For photographers who are looking to save while still investing in quality glass, this price difference could be a significant factor.
While both lenses offer exceptional features, the cost-effective nature of the VILTROX lens may appeal to entry-level photographers or those seeking to expand their lens collection without breaking the bank. The Canon lens, while more expensive, offers its own set of unique features that may justify the higher price for specific users.
Focal Length and Versatility
The Canon RF50mm F1.8 STM Lens provides a traditional 50mm focal length, which is often favored for portrait photography and general-purpose use. Its fixed focal length encourages creative composition, making it suitable for snapshots and landscapes as well.
On the other hand, the VILTROX 25mm F1.7 E offers a 38mm equivalent focal length, which is excellent for a wider range of photography styles, especially in tighter spaces, such as street photography. This versatility allows photographers to capture sharp images in various environments, catering to both casual and more serious photographers.
Autofocus Performance
Autofocus performance is crucial for both lenses, particularly for capturing fast-moving subjects or shooting video. The Canon RF50mm F1.8 STM Lens features a stepping motor that ensures smooth and quiet autofocus, making it a great choice for videographers who require discreet operation.
Conversely, the VILTROX 25mm F1.7 E is equipped with a new STM motor that delivers fast, precise, and nearly silent autofocus. This feature minimizes focus breathing, which is especially beneficial for video recording, allowing for smooth transitions when focusing. Both lenses excel in this area, but the specific needs of the photographer will determine which lens is better suited for their requirements.
Low-Light Performance
Both lenses boast impressive low-light performance due to their wide maximum apertures. The Canon RF50mm F1.8 STM Lens has an aperture of f/1.8, while the VILTROX 25mm F1.7 E slightly edges it out with an f/1.7 aperture. This gives the VILTROX lens a minor advantage in low-light conditions, allowing for more light to enter the lens.
This difference, albeit slight, can be crucial for photographers who frequently shoot in dim environments, such as during events or indoor settings. The ability to capture clear images with minimal noise is an essential feature for both lenses, but the VILTROX lens may provide a bit more flexibility under challenging lighting conditions.
Build Quality and Design
Build quality is an important consideration when choosing a lens. The Canon RF50mm F1.8 STM Lens is compact and lightweight, making it convenient for everyday use. Its design includes a control ring for easy setting adjustments, which is a thoughtful addition for users who like to have manual control over their settings.
The VILTROX 25mm F1.7 E also emphasizes thoughtful design, featuring an extended lens hood for added protection against stray light and improved image contrast. Additionally, the inclusion of a USB-C upgrade port allows for firmware updates, ensuring the lens remains compatible with new camera models. Both lenses are well-designed, but they cater to different user preferences in terms of handling and additional features.
Which should you buy?
Choosing between the Canon RF50mm F1.8 STM Lens and the VILTROX 25mm F1.7 E ultimately depends on individual needs and preferences. If you are a Canon EOS R series user looking for a reliable, versatile lens with excellent low-light capabilities, the Canon RF50mm F1.8 is a worthy investment, albeit at a higher price of $219.00.
However, if you are a Sony E-mount user seeking a more budget-friendly option that still delivers exceptional performance, the VILTROX 25mm F1.7 E at $176.00 offers great value. Its slightly wider aperture and versatile focal length make it an attractive choice for various photographic styles. Both lenses have their strengths, making them suitable for different photographers.

