Canon RF45mm F1.2 STM vs VILTROX
Updated July 2026 — Canon RF45mm F1.2 STM wins on build and optics, VILTROX wins on price and weight.
The Canon RF45mm F1.2 STM offers superior optical performance and low-light capabilities, while the VILTROX 56mm f/1.7 provides excellent value for budget-conscious photographers.
Why Canon RF45mm F1.2 STM is better
Optical Performance
Superior f/1.2 aperture for low-light and bokeh.
Build Quality
Compact design with a large-diameter mount.
Versatility
Ideal for various photography styles.
Why VILTROX is better
Price
Significantly cheaper at $180.
Weight
Lightweight at 170g for portability.
Autofocus
Efficient STM motor for quick focus.
Overall score
Specifications
| Spec | Canon RF45mm F1.2 STM | VILTROX |
|---|---|---|
| Aperture | f/1.2 | f/1.7 |
| Focal Length | 45mm | 56mm |
| Compatibility | Canon RF | Sony E |
| Weight | 540g | 170g |
| Bokeh | Excellent | Good |
Dimension comparison
Price Comparison
The Canon RF45mm F1.2 STM is priced at $469.00, while the VILTROX 56mm f/1.7 E Lens for Sony costs $180.00, making the VILTROX about 62% cheaper than the Canon lens. This significant price difference may appeal to budget-conscious photographers or those just starting out. The Canon lens offers impressive features like a large aperture and advanced optical design, which justify its higher price tag. However, the VILTROX lens still provides excellent value for those seeking a quality portrait lens without breaking the bank.
Build Quality and Design
Both lenses maintain a focus on portability and usability, though their designs cater to different needs. The Canon RF45mm F1.2 STM features a large-diameter mount combined with a compact design, which is ideal for creators needing an economical yet high-performance lens. On the other hand, the VILTROX 56mm f/1.7 is lightweight at just 170g, making it easier to carry around for extended shoots. This difference in weight and size could significantly impact users who prioritize mobility in their photography gear.
Optical Performance
The Canon RF45mm F1.2 STM excels in optical performance with its f/1.2 aperture, allowing for remarkable low-light capabilities and beautiful bokeh effects. This lens is designed to isolate subjects effectively, creating a three-dimensional look in images. Conversely, the VILTROX 56mm f/1.7 offers a full-frame equivalent focal length of about 85mm, which is excellent for portraits. While it has a slightly smaller aperture, its optical structure, including four ED lenses, ensures reliable image quality with low distortion. Both lenses have their unique strengths in optical performance, catering to different styles of photography.
Autofocus Capabilities
Autofocus technology varies notably between the two lenses. The Canon RF45mm F1.2 STM does not specify its autofocus system, but its design suggests a robust autofocus capability suitable for a variety of shooting conditions. In contrast, the VILTROX 56mm f/1.7 utilizes an STM silent motor for efficient and reliable autofocus, making it easier for beginners to achieve sharp focus quickly. This feature is particularly beneficial for video shooting and dynamic subjects, highlighting the VILTROX lens's suitability for versatile shooters.
Versatility and Use Cases
When considering versatility, the Canon RF45mm F1.2 STM is ideal for a range of photography styles, including portraits, lifestyle, and everyday narratives. Its wide aperture allows for creative compositions in various lighting conditions, making it a favorite among portrait photographers. Meanwhile, the VILTROX 56mm f/1.7 shines in portraiture, with its focal length providing an optimal perspective for capturing human subjects. Its lightweight design and autofocus capabilities make it a practical choice for on-the-go shooting, catering well to vloggers and content creators.
Compatibility
The compatibility of each lens is a crucial factor for potential buyers. The Canon RF45mm F1.2 STM is designed specifically for Canon's RF mount cameras, ensuring seamless integration with Canon's mirrorless system. In contrast, the VILTROX 56mm f/1.7 is tailored for Sony's APS-C E-mount cameras, including models like the a7IV, a7RV, and a6400. Users should consider their camera system before making a purchase, as these lenses are not interchangeable between brands.
User Experience
User experience can significantly influence the effectiveness of these lenses in real-world scenarios. The Canon RF45mm F1.2 STM is praised for its exceptional image quality and the creative control it offers to photographers. Its design encourages users to explore various styles, from portraits to environmental shots. Meanwhile, the VILTROX 56mm f/1.7 is designed with video creators in mind, offering low distortion and a nearly imperceptible breathing effect during focus changes. This makes it a compelling choice for those looking to produce high-quality video content alongside still photography.
Which should you buy?
Choosing between the Canon RF45mm F1.2 STM and the VILTROX 56mm f/1.7 ultimately depends on your needs and budget. If you prioritize high-end optical performance, low-light capability, and are willing to invest more, the Canon lens is likely the better choice. However, if you’re looking for a budget-friendly option that doesn’t compromise on quality, particularly for portrait work, the VILTROX lens offers excellent value at a much lower price point. Consider your camera system, shooting style, and budget to make the most informed decision.

