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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 aperture and focal length, VILTROX wins on weight and price.

The Canon RF50mm F1.8 STM Lens excels in low-light performance and versatility, while the VILTROX 9mm F2.8 E offers a wider field of view at a lower price. Choose based on your specific needs.

Why Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens is better

Low-Light Performance

Canon's f/1.8 aperture allows for better low-light shooting.

Versatility

Canon is suitable for portraits and various photography styles.

Build Quality

Canon's design is optimized for EOS R series cameras.

Why VILTROX is better

Price

VILTROX is approximately 17% cheaper than Canon.

Wide-Angle

VILTROX offers a wider 113.8° field of view.

Lightweight

VILTROX weighs only 175g, making it very portable.

Overall score

Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens
85
VILTROX
78

Specifications

SpecCanon RF50mm F1.8 STM Lens, Fixed Focal Length Prime LensVILTROX
Aperturef/1.8f/2.8
Focal Length50mm9mm
Field of View47°113.8°
Weight200g175g
CompatibilityEOS RSony E

Dimension comparison

Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime LensVILTROX

Overview of the Canon RF50mm F1.8 STM Lens

The Canon RF50mm F1.8 STM Lens is a versatile prime lens designed specifically for EOS R series mirrorless cameras. Priced at $219.00, it offers a fixed focal length that makes it perfect for a variety of photography styles, from portraits to landscapes. Its large f/1.8 aperture allows for exceptional low-light performance and beautiful background blur, making it a solid choice for both amateur and professional photographers alike.

This lens features a compact and lightweight design, making it easy to carry around. Its optimized lens placement and coatings minimize ghosting and flare while ensuring vibrant color balance in your shots. The stepping motor provides smooth and quiet autofocus, which is ideal for video recording. With a control ring for direct settings adjustment, the Canon RF50mm is a well-rounded lens for creative expression.

Overview of the VILTROX 9mm F2.8 E

The VILTROX 9mm F2.8 E is an impressive ultra-wide-angle lens priced at $199.00, making it approximately 17% cheaper than the Canon RF50mm. This lens boasts a remarkable 113.8° field of view, making it perfect for capturing expansive landscapes or dynamic vlogs. Its 13 elements in 11 groups optical design ensures sharp images from center to edge, providing great versatility for various shooting needs.

Weighing just 175 grams, the VILTROX 9mm is lightweight and portable, ideal for photographers who are always on the go. It features a minimum focusing distance of 0.13m, allowing for stunning close-up shots. The lens is equipped with a reliable STM motor for fast autofocus, making it suitable for capturing street scenes or lively pets. Overall, the VILTROX offers a wide-angle perspective that adapts easily to diverse creative requirements.

Design and Build Quality

When it comes to design and build quality, both lenses are compact and user-friendly, but they cater to different photographic needs. The Canon RF50mm’s fixed focal length design is sleek and lightweight, emphasizing portability. Its design is optimized for compatibility with EOS R series cameras, ensuring a seamless fit and balance.

In contrast, the VILTROX 9mm F2.8 E focuses on delivering a wider field of view while remaining portable. The inclusion of a lotus-shaped lens hood enhances its usability by minimizing stray light and dark corners. Both lenses are durable, but the more specialized design of the VILTROX may appeal to those seeking a dedicated wide-angle solution.

Image Quality

Image quality is a critical factor for any lens, and both the Canon RF50mm and the VILTROX 9mm excel in this area, albeit in different contexts. The Canon RF50mm offers stunning low-light performance due to its f/1.8 aperture, allowing for creative background blur and bokeh. Its optimized lens placement and coatings ensure outstanding color balance while minimizing ghosting and flare.

On the other hand, the VILTROX 9mm delivers sharp images across the frame thanks to its complex optical design, which includes three high refractive elements and two aspherical elements. This lens is particularly suited for wide-angle photography, providing vibrant imagery even in challenging lighting conditions. Each lens shines in its respective specialty, making your choice dependent on your shooting style.

Autofocus Performance

Autofocus performance varies between the two lenses, with each utilizing an STM motor for quick and efficient focusing. The Canon RF50mm is designed for smooth and quiet autofocus, making it an excellent choice for video recording—allowing for seamless transitions without distracting noise.

Conversely, the VILTROX 9mm F2.8 E focuses quickly and accurately as well, making it suitable for fast-paced environments like street photography or action shots. With both lenses equipped with reliable autofocus systems, your choice may depend more on the specific shooting scenarios you anticipate, whether they involve video or fast-moving subjects.

Compatibility

Compatibility is a key consideration when choosing a lens, and both options cater to specific camera systems. The Canon RF50mm is designed exclusively for the EOS R series mirrorless cameras, ensuring optimal performance and functionality. This makes it a great addition to any EOS R user’s kit.

The VILTROX 9mm F2.8 E, however, is designed for Sony E mount cameras, making it compatible with a broader range of models, including the a6400, a6500, and a6600, among others. If you own a Sony camera, the VILTROX provides an excellent wide-angle option that fits seamlessly into your existing gear. Your choice of lens will largely depend on your camera system.

Price Comparison

In terms of pricing, the Canon RF50mm is available for $219.00, while the VILTROX 9mm is priced at $199.00. This makes the VILTROX about 17% cheaper than the Canon lens. While both lenses offer excellent features and build quality, the lower price point of the VILTROX may attract budget-conscious photographers looking for a high-quality wide-angle lens.

However, it's essential to consider what features are most valuable to you. If you prioritize low-light performance and portrait capabilities, the Canon RF50mm may justify its higher price. Conversely, if your focus is on expansive landscapes or vlogging, the VILTROX offers great value without compromising on quality.

Which should you buy?

Choosing between the Canon RF50mm F1.8 STM Lens and the VILTROX 9mm F2.8 E ultimately hinges on your specific photography needs and camera compatibility. If you own an EOS R series camera and seek a versatile lens for portraits and low-light situations, the Canon RF50mm is a strong contender. On the other hand, if you are looking for a budget-friendly ultra-wide-angle lens that excels in capturing expansive scenes or vlogs, the VILTROX 9mm stands out.

Both lenses are excellent in their categories, with the Canon focusing on versatility and low-light performance, while the VILTROX emphasizes wide-angle capabilities and a lower price point. Your choice should reflect your primary photography goals and the type of camera system you use.