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Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle vs Canon RF45mm F1.2 STM

Updated July 2026 — Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle wins on price and versatility, Canon RF45mm F1.2 STM wins on aperture and bokeh.

The Canon RF28mm F2.8 STM Lens is a more affordable and versatile option, while the RF45mm F1.2 STM excels in low-light performance and bokeh quality.

Why Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle is better

Price

RF28mm is $299, 36% cheaper than RF45mm at $469.

Weight

RF28mm is lightweight and compact, ideal for travel.

Versatility

RF28mm is suitable for a wider range of photography styles.

Why Canon RF45mm F1.2 STM is better

Aperture

RF45mm has a wider f/1.2 aperture for low-light performance.

Bokeh

RF45mm creates superior subject isolation with creamy bokeh.

Image Quality

RF45mm reduces aberrations effectively with advanced lens technology.

Overall score

Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle
78
Canon RF45mm F1.2 STM
88

Specifications

SpecCanon RF28mm F2.8 STM Lens, RF Mount, Wide-AngleCanon RF45mm F1.2 STM
Focal Length28mm45mm
Max Aperturef/2.8f/1.2
Min Focus0.23m0.40m
Image QualityGoodExcellent
AutofocusSmoothVery Smooth

Dimension comparison

Canon RF28mm F2.8 STM Lens, RF Mount, Wide-AngleCanon RF45mm F1.2 STM

Introduction to the Lens Comparison

In the realm of Canon lenses, the Canon RF28mm F2.8 STM Lens and the Canon RF45mm F1.2 STM stand out as two compelling options for photographers and videographers alike. The RF28mm is priced at $299.00, making it about 36% cheaper than the RF45mm at $469.00. This comparison will explore their features, intended uses, and overall performance to help you decide which lens suits your creative needs.

Design and Build Quality

The Canon RF28mm F2.8 STM Lens boasts a super-compact design, making it an excellent travel companion. Its pancake style ensures that it is lightweight and unobtrusive, perfect for street photography or casual shooting. On the other hand, the RF45mm F1.2 STM features a more traditional lens design but is still compact for a large-diameter lens. The build quality of both lenses reflects Canon's commitment to durability and functionality, but the RF28mm's lightweight design may appeal more to those looking for portability.

Image Quality

Image quality is vital for any lens, and here, both lenses offer impressive performance. The RF28mm features three aspheric elements and Canon's Super Spectra Coating, which work together to minimize ghosting and flare, ensuring excellent image clarity. Meanwhile, the RF45mm incorporates PMo aspheric lens technology, which reduces aberrations, enhancing overall image quality. The RF45mm's f/1.2 aperture allows for exceptional low-light performance and beautiful bokeh, making it ideal for portraiture and artistic shots.

Autofocus Performance

Both lenses utilize Canon's STM (stepping motor) technology, ensuring smooth and quiet autofocus operation, particularly beneficial for video recording. The RF28mm, designed with everyday use in mind, provides reliable autofocus for a variety of shooting situations. The RF45mm's advanced autofocus capabilities are particularly refined, allowing for precise subject isolation due to its large aperture. The difference in focus speed may not be significant for casual users, but professionals will appreciate the RF45mm's enhanced performance in challenging lighting conditions.

Versatility and Use Cases

The RF28mm's 28mm focal length provides a versatile perspective suitable for landscapes, street photography, and general everyday shooting. It translates to approximately 45mm on APS-C cameras, making it an excellent choice for those who own such models. Conversely, the RF45mm, with its 45mm focal length, is particularly well-suited for portrait photography and any scenario where subject isolation is crucial. Its wide f/1.2 aperture allows for the creation of striking images with a three-dimensional feel, making it a preferred choice for creatives seeking to elevate their work.

Price and Value

When it comes to price, the RF28mm is significantly more budget-friendly at $299.00 compared to the RF45mm's $469.00. This means the RF28mm is about 36% cheaper, making it an attractive option for those who are starting out or who want a reliable lens without breaking the bank. However, the higher price of the RF45mm reflects its superior features and performance, particularly in low-light situations and creative photography. For serious photographers willing to invest more for enhanced capabilities, the RF45mm offers excellent value.

Compatibility

Both lenses are designed for Canon’s RF mount, making them compatible with full-frame EOS R series cameras. The RF28mm can also be used with APS-C sensor cameras, providing a standard 45mm equivalent, which broadens its usability for a range of photographers. The RF45mm, while also compatible with full-frame and APS-C cameras, shines in situations where the large aperture is beneficial. This compatibility ensures that both lenses cater to a wide audience, whether you are a casual shooter or a professional.

User Experience

The user experience with both lenses varies based on their intended applications. The RF28mm is designed for those who prioritize a lightweight and compact lens that is easy to carry and deploy for spontaneous shooting. It’s great for travel and everyday photography. The RF45mm, however, caters to photographers who value the ability to create stunning imagery with creamy bokeh and excellent low-light performance. Each lens delivers a unique user experience tailored to different photographic needs.

Which should you buy?

Deciding between the Canon RF28mm F2.8 STM Lens and the Canon RF45mm F1.2 STM depends on your specific needs and budget. If you are looking for a lightweight, versatile lens for everyday use at a lower price point, the RF28mm is an excellent choice at $299.00. However, if you require superior low-light performance and beautiful subject isolation for portrait work, the RF45mm, despite its higher price of $469.00, offers features that justify the investment. Ultimately, both lenses are exceptional in their own right, catering to different styles and requirements.