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Canon RF45mm F1.2 STM vs VILTROX

Updated July 2026 — Canon RF45mm F1.2 STM wins on build and aperture, VILTROX wins on price and portability.

The Canon RF45mm F1.2 STM excels in low-light performance and optical quality, while the VILTROX 25mm f1.7 offers portability and affordability. Choose based on your photography needs.

Why Canon RF45mm F1.2 STM is better

Optical Quality

Canon lens maintains clarity and detail at wide apertures.

Low-Light Performance

Canon's f/1.2 aperture allows for superior low-light shooting.

Build Quality

Canon lens has a premium build for professional use.

Why VILTROX is better

Price

VILTROX is significantly cheaper at $176.

Weight

VILTROX is lightweight at 170 grams, ideal for travel.

Portability

VILTROX's compact design is perfect for spontaneous shoots.

Overall score

Canon RF45mm F1.2 STM
88
VILTROX
76

Specifications

SpecCanon RF45mm F1.2 STMVILTROX
Aperturef/1.2f/1.7
Weight540g170g
AutofocusAdvancedReliable STM
Optical StructurePMo aspheric12 elements in 10 groups
Price$469.00$176.00

Dimension comparison

Canon RF45mm F1.2 STMVILTROX

Overview of the Products

The Canon RF45mm F1.2 STM is a standard prime lens designed for creators seeking high-quality imagery, while the VILTROX 25mm f1.7 E-Mount lens offers a more compact and lightweight option for Sony E-Mount cameras. Priced at $469.00, the Canon lens is significantly more expensive than the VILTROX lens, which retails for $176.00. This price difference of about 62% highlights the varying target audiences and use cases for each lens.

Design and Build Quality

The Canon RF45mm F1.2 STM features a large-diameter mount and short back focus, resulting in a compact design that doesn’t compromise on performance. Its premium build quality is apparent, especially when capturing low-light images or creating a soft bokeh effect. In contrast, the VILTROX 25mm f1.7 weighs only 170 grams, making it extremely portable for spontaneous shooting opportunities. While the Canon lens is designed for a more robust and professional shooting experience, the lightweight nature of the VILTROX positions it well for casual or travel photography.

Aperture and Light Performance

When it comes to aperture, the Canon RF45mm boasts an impressive f/1.2, allowing for faster shutter speeds in low-light conditions and creating a three-dimensional look due to its superior bokeh capabilities. This is ideal for portrait and lifestyle photography. The VILTROX 25mm, on the other hand, features a slightly narrower f/1.7 aperture, which still provides beautiful background blur and natural bokeh, but may not match the Canon's performance in very low light. The Canon lens thus excels in scenarios demanding the utmost light sensitivity.

Autofocus Capabilities

The autofocus performance of both lenses is noteworthy, but they cater to different user needs. The Canon RF45mm uses advanced distortion correction and features a PMo aspheric lens to reduce aberrations. The VILTROX 25mm incorporates a built-in STM stepping motor that supports efficient and reliable autofocus, including eye and face detection. This autofocus system provides improved response and reduced vibration, making the VILTROX a strong contender for those focused on capturing moving subjects, although it may not reach the precision of Canon's advanced optical design.

Optical Quality

The Canon RF45mm lens is designed with a focus on reducing aberrations, resulting in images that maintain clarity and detail even at wide apertures. Its construction reflects Canon's history of producing high-quality glass, ensuring that users can capture exceptional shots with minimal optical distortion. In comparison, the VILTROX 25mm features a more complex optical structure comprising 12 elements in 10 groups, including high refractive index and aspherical lenses. While it aims to deliver high-definition imagery, it may not consistently match the optical quality of the Canon lens, especially in challenging lighting conditions.

Use Cases and Versatility

The Canon RF45mm F1.2 STM is particularly well-suited for portrait photography, lifestyle content, and any situation where stunning low-light performance is desired. Its versatility is further enhanced by its ability to create a refined look straight from the camera. Conversely, the VILTROX 25mm is ideal for those who prioritize portability and versatility in various shooting environments, from urban landscapes to casual gatherings. The differences in focal length also lend each lens to different types of photography, with the Canon being more specialized while the VILTROX offers broader usability.

Price Considerations

The price is a critical factor when choosing between these two lenses. The Canon RF45mm retails for $469.00, which positions it as a premium option for serious photographers willing to invest in high-quality equipment. In contrast, the VILTROX 25mm is priced at $176.00, making it approximately 62% cheaper. This significant price difference makes the VILTROX a more accessible option for hobbyists or those on a budget who still want quality performance without breaking the bank.

Which should you buy?

Choosing between the Canon RF45mm F1.2 STM and the VILTROX 25mm f1.7 largely depends on your photography needs and budget. If you prioritize professional-quality images, especially in low-light settings, and are willing to invest more, the Canon lens is the superior choice. However, if you are looking for a lightweight, versatile lens that offers great performance at a much lower price point, the VILTROX is an excellent option. Each lens has its strengths, and understanding your specific requirements will ultimately guide your decision.