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Canon RF45mm F1.2 STM vs VILTROX AF

Updated July 2026 — Canon RF45mm F1.2 STM wins on price and aperture, VILTROX AF wins on thickness and autofocus.

The Canon RF45mm F1.2 STM excels in optical performance and low-light capabilities, while the VILTROX AF 28mm F4.5 offers exceptional value and portability.

Why Canon RF45mm F1.2 STM is better

Optical Performance

Canon's f/1.2 aperture allows for better low-light performance.

Bokeh Effect

Canon creates a three-dimensional bokeh effect.

Brand Reputation

Canon is known for high-quality, professional-grade equipment.

Why VILTROX AF is better

Price

VILTROX is significantly cheaper at $99.

Weight

VILTROX is lightweight at only 60 grams.

Compact Size

VILTROX is thinner at 15.3 mm.

Overall score

Canon RF45mm F1.2 STM
85
VILTROX AF
70

Specifications

SpecCanon RF45mm F1.2 STMVILTROX AF
Aperturef/1.2f/4.5
Focal Length45mm28mm
Weight650g60g
DimensionsUnknown15.3mm
AutofocusFastVCM Motor
Price$469.00$99.00

Dimension comparison

Canon RF45mm F1.2 STMVILTROX AF

Price Comparison

When it comes to price, the VILTROX AF 28mm F4.5 is significantly more affordable than the Canon RF45mm F1.2 STM. Priced at $99.00, the VILTROX lens costs about 79% less than the Canon lens, which is priced at $469.00. This substantial price difference makes the VILTROX an attractive option for budget-conscious photographers or those just starting with their lens collection. While the Canon lens offers superior features such as a wide f/1.2 aperture, the VILTROX provides a compelling value for its price point, particularly for those who desire a lightweight and compact lens for everyday use.

Optical Performance

In terms of optical performance, the Canon RF45mm F1.2 STM takes the lead with its large f/1.2 aperture that allows for faster shutter speeds and exceptional low-light performance. This capability is ideal for capturing stunning portraits and lifestyle images with a three-dimensional bokeh effect, providing a striking separation between the subject and background. On the other hand, the VILTROX AF 28mm F4.5 features six elements in six groups, including two ED lenses and two aspherical lenses, which contribute to sharp and vibrant images. While the VILTROX excels in producing starburst effects thanks to its unique front element, it does not match the low-light capabilities of the Canon lens.

Size and Weight

The VILTROX AF 28mm F4.5 is remarkably compact and lightweight, weighing only 60 grams and measuring just 15.3 mm thick. This makes it the lightest and thinnest lens in the Viltrox lineup, perfect for on-the-go shooting and vlogging. In contrast, while Canon's RF45mm F1.2 STM is designed to be compact for a large-diameter lens, it is inherently bulkier due to its larger glass elements and build. For photographers who prioritize portability and ease of carrying, the VILTROX lens stands out as the better choice.

Autofocus Capabilities

Both lenses offer efficient autofocus capabilities, but they cater to different shooting needs. The VILTROX AF 28mm F4.5 is equipped with a built-in VCM motor that supports quick and precise autofocus, including face and eye recognition features. This makes it particularly suited for dynamic shooting situations, such as events or vlogging. Meanwhile, the Canon RF45mm F1.2 STM's autofocus system is not mentioned in detail, but its design is optimized for fast and accurate focusing, which is essential for portrait photography. However, without specific specifications provided for Canon's autofocus performance, the VILTROX lens clearly has a distinct advantage in this category.

Build Quality and Durability

In terms of build quality, the VILTROX AF 28mm F4.5 incorporates an aluminum alloy mount that enhances its durability while maintaining a lightweight design. Additionally, it features HD Nano Coating, which reduces reflections and protects the lens from dust, water, and smudges. This combination of materials and coatings ensures that the VILTROX lens can withstand the rigors of daily use. The Canon RF45mm F1.2 STM, while also constructed with quality in mind, does not provide specific details about its materials or coatings. Nevertheless, its reputation as a Canon product suggests a high standard of durability.

Intended Use

The intended use for both lenses varies based on their specifications. The Canon RF45mm F1.2 STM is primarily aimed at portrait and lifestyle photographers who require a fast aperture for creative control in low-light environments. Its ability to create beautiful bokeh makes it ideal for professional work where image quality is paramount. Conversely, the VILTROX AF 28mm F4.5 lens is designed for casual photographers and vloggers who need a lightweight lens for everyday shooting and wide-angle perspectives. Its unique slide cap design adds a playful element, making it suitable for spontaneous photography and videography.

Brand Reputation

Both Canon and VILTROX have established reputations in the photography industry, but they serve different segments of the market. Canon is widely recognized for its high-quality, professional-grade equipment, and the RF45mm F1.2 STM exemplifies this with its premium features and performance. VILTROX, a newer player, has gained traction for offering innovative and budget-friendly products without sacrificing quality. While Canon may appeal to serious photographers and professionals, VILTROX is an excellent choice for enthusiasts and those exploring photography without a significant investment.

Which should you buy?

Choosing between the Canon RF45mm F1.2 STM and the VILTROX AF 28mm F4.5 ultimately depends on your specific photography needs and budget. If you require a high-performance lens for professional-quality portraits and low-light situations, the Canon lens is worth the investment despite its higher price. However, if you are looking for an affordable, lightweight lens for casual photography or vlogging, the VILTROX lens offers exceptional value and convenience. Consider your shooting style, the environments you'll be working in, and how much you are willing to spend when making your decision.