Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle vs OM SYSTEM Olympus M.Zuiko Digital 40-
Updated July 2026 — Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle wins on weight and size, OM SYSTEM Olympus M.Zuiko Digital 40- wins on zoom capability.
The Canon RF28mm F2.8 STM Lens offers superior image quality and is ideal for full-frame users, while the OM SYSTEM Olympus M.Zuiko Digital 40-150mm provides versatility at a lower price.
Why Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle is better
Image Quality
Canon lens has advanced optical design with superior sharpness.
Portability
Canon lens is more compact and lightweight.
Video Performance
Canon lens features quiet autofocus ideal for videography.
Why OM SYSTEM Olympus M.Zuiko Digital 40- is better
Price
Olympus lens is significantly cheaper.
Zoom Range
Olympus lens offers a versatile 3.75x zoom.
Compatibility
Olympus lens works with Micro Four Thirds cameras.
Overall score
Specifications
| Spec | Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle | OM SYSTEM Olympus M.Zuiko Digital 40- |
|---|---|---|
| Focal Length | 28mm | 40-150mm |
| Max Aperture | F2.8 | F4-5.6 |
| Min Focus | 9 in. | Not specified |
| Max Magnification | 0.17x | 0.16x |
| Autofocus | STM | High-Speed AF |
Dimension comparison
Overview of the Canon RF28mm F2.8 STM Lens
The Canon RF28mm F2.8 STM Lens is designed specifically for full-frame cameras, providing a versatile wide-angle option. Priced at $299.00, this lens stands out for its compact design and high-quality image capabilities. It is particularly well-suited for street photography and videography, making it an excellent choice for Canon EOS R series users.
This lens features a pancake design that is lightweight and easy to carry, which enhances its portability. With a minimum focus distance of approximately 9 inches and a maximum magnification of 0.17x, it allows for creative close-up shots while maintaining a wide-angle perspective. The lens also incorporates Canon’s Super Spectra Coating to minimize ghosting and flare, ensuring excellent image quality in various lighting conditions.
Overview of the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R
In contrast, the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R is a versatile zoom lens designed for Micro Four Thirds system cameras, priced at $175.99. This lens offers a focal length range of 40-150mm, providing a 3.75x zoom capability that is ideal for a wide range of photography styles, from portraits to wildlife.
With a maximum aperture of F4-5.6, this lens is designed for use in various lighting conditions, although it does not perform as well in low light compared to faster lenses. Its design emphasizes portability, making it a good option for photographers on the go. The lens also features High-Speed Imager AF, which enhances autofocus performance, ensuring that you can capture fast-moving subjects with precision.
Image Quality Comparison
When it comes to image quality, the Canon RF28mm F2.8 STM Lens excels with its advanced optical design, which includes three aspheric elements. This design minimizes distortions and aberrations, providing sharp and clear images. The Super Spectra Coating further enhances image quality by reducing ghosting and flare, making it suitable for various shooting conditions.
On the other hand, while the OM SYSTEM Olympus M.Zuiko Digital 40-150mm offers decent image quality for its price point, it may not match the Canon lens in terms of sharpness and color accuracy, especially at the extremes of its zoom range. With a maximum image magnification of 0.16x, it is slightly less capable than the Canon lens for close-up photography, which could be a consideration for those who prioritize macro capabilities.
Portability and Design
Portability is a strong point for both lenses, but they cater to different needs. The Canon RF28mm F2.8 STM Lens is notably compact and lightweight, making it an excellent travel companion. Its pancake design allows it to easily fit into a camera bag without taking up much space. This lens is particularly appealing for street photographers looking for a discreet option.
The OM SYSTEM Olympus M.Zuiko Digital 40-150mm, while also designed with portability in mind, is bulkier due to its zoom capabilities. However, its extended focal length provides versatility for a wider range of photography styles, which may justify the extra size for some photographers. If you frequently shoot in dynamic environments where flexibility is crucial, the zoom range might outweigh the compactness of the Canon lens.
Autofocus Performance
The Canon RF28mm F2.8 STM Lens features a leadscrew type STM (stepping motor) focus drive, which is particularly beneficial for smooth and quiet autofocus performance during video recording. This feature makes it an excellent choice for videographers, as it minimizes focus noise and allows for seamless adjustments while filming.
In comparison, the OM SYSTEM Olympus M.Zuiko Digital 40-150mm boasts High-Speed Imager AF (MSC), which delivers fast and accurate focusing. This is particularly useful for capturing moving subjects, making it suitable for sports and wildlife photography. Although both lenses offer solid autofocus systems, the choice may depend on whether you prioritize video work or fast-action photography.
Price Comparison
The Canon RF28mm F2.8 STM Lens is priced at $299.00, while the OM SYSTEM Olympus M.Zuiko Digital 40-150mm is more budget-friendly at $175.99. This means the Olympus lens is about 41% cheaper than the Canon lens, making it an attractive option for photographers looking for a versatile zoom lens without breaking the bank.
However, the price difference also reflects their differing capabilities. The Canon lens offers a wider aperture and superior image quality, which might be worth the investment for serious photographers. In contrast, the Olympus lens provides a broader focal range suitable for various shooting situations, making it a compelling option for those who prioritize versatility and affordability.
Compatibility and Use Cases
The Canon RF28mm F2.8 STM Lens is specifically designed for full-frame EOS R series cameras, making it the optimal choice for users of that system. Its wide-angle capability is perfect for landscape, architecture, and street photography, allowing for creative compositions that leverage its 28mm focal length effectively.
Conversely, the OM SYSTEM Olympus M.Zuiko Digital 40-150mm is compatible with Micro Four Thirds system cameras. This lens is ideal for portrait and wildlife photography, thanks to its zoom capabilities. It allows photographers to capture distant subjects without the need for multiple lenses, making it a great all-in-one solution for various shooting scenarios.
Which should you buy?
Deciding between the Canon RF28mm F2.8 STM Lens and the OM SYSTEM Olympus M.Zuiko Digital 40-150mm largely depends on your photographic needs and budget. If you're looking for a compact, high-quality wide-angle lens for full-frame cameras, the Canon lens is a superb choice that excels in image quality and video performance. However, if you need versatility and a more budget-friendly option for a variety of photography styles, the Olympus lens offers excellent value with its zoom capabilities. Ultimately, your decision should be guided by your camera system and the types of photography you intend to pursue.

