Canon RF16mm F2.8 STM Lens vs Viltrox
Updated July 2026 — Canon RF16mm F2.8 STM Lens wins on focal length and focus distance, Viltrox wins on price and weight.
The Canon RF16mm F2.8 STM Lens excels in ultra-wide photography, while the Viltrox 25mm F1.7 E offers great low-light performance at a lower price.
Why Canon RF16mm F2.8 STM Lens is better
Wide Angle
Canon offers an ultra-wide angle of 16mm.
Build Quality
Canon lens is designed for EOS R series.
Minimum Focus
Canon has a minimum focusing distance of 5.11 inches.
Why Viltrox is better
Price
Viltrox is $83 cheaper.
Aperture
Viltrox has a brighter f/1.7 maximum aperture.
Weight
Viltrox weighs only 170g.
Overall score
Specifications
| Spec | Canon RF16mm F2.8 STM Lens | Viltrox |
|---|---|---|
| Max Aperture | f/2.8 | f/1.7 |
| Focal Length | 16mm | 25mm |
| Weight | Not Specified | 170g |
| Min Focus | 5.11 inches | Not Specified |
| Autofocus | Stepping Motor | Stepping Motor |
Dimension comparison
Overview of the Canon RF16mm F2.8 STM Lens
The Canon RF16mm F2.8 STM Lens offers an ultra-wide angle view with a bright f/2.8 maximum aperture, making it an excellent choice for a variety of photography styles. This lens is priced at $259.00, and it is specifically designed for EOS R series digital cameras. It is lightweight and compact, enhancing its portability for users who want to capture expansive landscapes or tight indoor spaces. Canon’s lens also features a minimum focusing distance of 5.11 inches, allowing users to get up close while maintaining a broad background view, which is essential for vlogging or interior shots.
Overview of the Viltrox 25mm F1.7 E
The Viltrox 25mm F1.7 E is a 25mm prime lens that retails for $176.00, making it about 31% cheaper than the Canon RF16mm. This lens is ideal for Sony E-mount cameras, offering a bright f/1.7 maximum aperture that excels in low-light conditions. Weighing only 170g, it is designed for travel and everyday use, ensuring that it can be easily carried without adding significant weight. The Viltrox lens employs a stepping motor for quiet autofocus, making it suitable for both photo and video shooting, especially in scenarios where sound quality is crucial.
Image Quality and Performance
The Canon RF16mm F2.8 STM Lens is renowned for its high image quality and bright f/2.8 aperture, making it an excellent option for capturing sharp, detailed images in a variety of lighting conditions. Its ultra-wide-angle capability allows for unique perspectives and expansive landscapes, which can be particularly beneficial for landscape and architectural photography. In contrast, the Viltrox 25mm F1.7 E, with its f/1.7 aperture, provides greater control over depth of field, which can be advantageous for portrait photography and achieving a beautiful bokeh effect. While both lenses promise quality, their different focal lengths and aperture designs cater to distinct photographic needs.
Autofocus Capabilities
The autofocus experience with both lenses is designed to be quiet and efficient. The Canon RF16mm utilizes a stepping motor that provides smooth and silent continuous autofocus, which is particularly beneficial during video recording. This feature makes it a strong contender for vloggers and content creators. Meanwhile, the Viltrox 25mm F1.7 E also features a stepping motor for autofocus, ensuring that it operates quietly without disrupting video or photo shoots. The Viltrox lens supports face and eye recognition, making it a great choice for portrait photography where focus precision is critical.
Weight and Portability
When it comes to portability, the Viltrox 25mm F1.7 E stands out with its lightweight design at just 170g. This makes it ideally suited for travel and everyday use, ensuring that it won’t weigh down your camera bag. In comparison, the Canon RF16mm is also lightweight but does not specify a weight in the provided data. Canon lenses are generally compact, but photographers who prioritize weight may find the Viltrox lens more appealing for extended shooting sessions or travel.
Versatility in Usage
The Canon RF16mm F2.8 STM Lens is designed for versatility, making it an excellent choice for various photography genres, including landscapes, interiors, and even as a webcam lens when paired with compatible EOS cameras. Its ultra-wide angle opens up creative possibilities, especially in tight spaces. The Viltrox 25mm F1.7 E, while slightly more specialized in its focal length, is also versatile, being great for low-light conditions and everyday shooting scenarios. The autofocus features enhance its usability in dynamic environments, making both lenses suitable for a range of photographic applications.
Price Comparison
The price difference between the two lenses is significant, with the Viltrox 25mm F1.7 E priced at $176.00, which is approximately $83.00 less than the Canon RF16mm at $259.00. This represents a cost savings of about 31%. For budget-conscious photographers, the Viltrox lens offers an attractive alternative without compromising much on performance, particularly for those who primarily shoot in low-light environments or need a lightweight option for travel.
Which should you buy?
Deciding between the Canon RF16mm F2.8 STM Lens and the Viltrox 25mm F1.7 E ultimately depends on your specific photography needs. If you require an ultra-wide lens for landscapes or vlogging and prefer the Canon ecosystem, the RF16mm is an excellent choice. However, if you are looking for a more budget-friendly option that excels in low-light scenarios and offers great depth of field control, the Viltrox 25mm may be the better pick. Both lenses have their strengths, making them suitable for different types of users.

