Canon RF100- vs Canon RF28-
Updated July 2026 — Canon RF100- wins on zoom and aperture, Canon RF28- wins on price.
The Canon RF100-500mm offers superior versatility and value for distant photography, while the RF28-70mm excels in low-light and portrait scenarios.
Why Canon RF100- is better
Price
RF100-500mm is $500 cheaper
Zoom Range
RF100-500mm offers 100-500mm vs 28-70mm
Image Stabilization
RF100-500mm has advanced stabilization
Why Canon RF28- is better
Aperture
RF28-70mm has constant f/2 aperture
Depth of Field
RF28-70mm excels in subject isolation
Control Ring
RF28-70mm includes a control ring for adjustments
Overall score
Specifications
| Spec | Canon RF100- | Canon RF28- |
|---|---|---|
| Focal Length | 100-500mm | 28-70mm |
| Max Aperture | F4.5-7.1 | F2 |
| Stabilization | Yes | No |
| Autofocus | Dual Nano USM | USM |
| Weather Sealing | Yes | Yes |
Dimension comparison
Overview of the Canon RF100-500mm F4.5-7.1 L IS USM Lens
The Canon RF100-500mm F4.5-7.1 L IS USM Lens is a versatile super-telephoto zoom lens priced at $2,898.95. This lens is designed for those looking to capture distant subjects, making it ideal for sports, wildlife, and aviation photography. With its significant zoom range from 100mm to 500mm, it allows photographers to cover a vast array of shooting scenarios while maintaining a compact and travel-friendly design.
The lens features a robust optical image stabilization system that can correct up to five stops of shake, enhancing the clarity of handheld shots. Additionally, it includes high-speed Dual Nano USM autofocus motors, ensuring quick and silent focusing during dynamic shooting conditions. This lens is well-suited for photographers utilizing Canon’s EOS R series mirrorless cameras, offering both excellent performance and reliability.
Overview of the Canon RF28-70mm F2 L USM Lens
The Canon RF28-70mm F2 L USM Lens presents a different approach to photography with its constant f/2 aperture, priced at $3,399.00. This lens excels in low-light situations and provides photographers with the ability to create a shallow depth of field for isolating subjects. Its zoom range from 28mm to 70mm makes it suitable for a variety of applications, from wide-angle shots to portraits.
This lens also boasts high image quality, characteristic of Canon’s L-series lenses, and incorporates a control ring for easy adjustments to settings. Like its counterpart, the RF28-70mm is designed for the EOS R series, and its dust and water-resistant features ensure durability in challenging environments. The bright aperture combined with its versatility makes it a favored choice among portrait and event photographers.
Comparing the Price Points
When comparing the price points, the RF100-500mm is about 15% cheaper than the RF28-70mm, making it $500 less expensive. The RF100-500mm is priced at $2,898.95, while the RF28-70mm costs $3,399.00. This price difference could influence a photographer’s decision, especially if budget constraints are a consideration.
While both lenses offer unique advantages, the RF100-500mm provides a more economical option for those in need of a super-telephoto lens, whereas the RF28-70mm justifies its higher price with its constant f/2 aperture and exceptional low-light performance.
Image Stabilization and Autofocus
The RF100-500mm lens features an advanced optical image stabilization system that can correct up to five stops of shake, which is particularly beneficial for telephoto photography. This capability allows photographers to shoot at slower shutter speeds without introducing blur, making it ideal for capturing distant subjects in less-than-ideal lighting conditions.
On the other hand, the RF28-70mm lens also comes equipped with a high-speed autofocus system, but it lacks the extensive image stabilization capabilities of its counterpart. While it focuses quickly and quietly, the absence of extensive stabilization may be noticeable in hand-held shots, especially in low-light scenarios where slower shutter speeds are used.
Versatility in Photography Styles
The RF100-500mm's extensive zoom range makes it incredibly versatile for various photography styles, particularly for capturing wildlife or sports action from a distance. Its design allows for impressive close-ups without needing to be physically close to the subject, which is a significant advantage in dynamic environments.
In contrast, the RF28-70mm lens shines in more controlled settings, such as portrait photography, where depth of field and bokeh are crucial. Its constant f/2 aperture allows for excellent subject isolation, making it ideal for professional portraits and events. However, it may not perform as well in scenarios requiring extensive zoom capabilities, limiting its versatility compared to the RF100-500mm.
Build Quality and Durability
Both lenses are constructed with L-series quality, ensuring high durability and reliability. The RF100-500mm features dust and weather resistance, making it suitable for outdoor shooting in various conditions. It also has fluorine-coated elements to resist dirt and moisture, enhancing its longevity.
The RF28-70mm lens is similarly dust and water-resistant, which is essential for photographers who often work in unpredictable environments. Its robust design and fluorine coating also provide similar protection from contaminants. Both lenses cater to professionals who require gear that can withstand demanding conditions, although the RF100-500mm may have a slight edge in outdoor versatility due to its longer reach.
Target Audience and Use Cases
The RF100-500mm lens is primarily targeted towards wildlife and sports photographers who need the ability to zoom in on distant subjects. Its performance in dynamic situations makes it highly suitable for capturing fast-moving action, with the added benefit of image stabilization.
Conversely, the RF28-70mm lens is tailored for portrait and event photographers who prioritize low-light performance and depth of field control. Its f/2 aperture makes it a preferred choice for those looking to create stunning portraits with a soft background blur. Each lens serves its distinct audience, highlighting the importance of aligning gear with specific photographic needs.
Which should you buy?
Choosing between the Canon RF100-500mm F4.5-7.1 L IS USM Lens and the Canon RF28-70mm F2 L USM Lens ultimately depends on your photographic preferences and requirements. If you prioritize versatility and the ability to shoot distant subjects, the RF100-500mm offers a compelling option at a lower price point. Its robust stabilization and zoom range cater excellently to wildlife and sports photography.
On the other hand, if you primarily focus on portraiture and value low-light capabilities, the RF28-70mm is worth its higher price for its constant f/2 aperture and superior depth of field control. Both lenses are excellent choices within their respective realms, ensuring that photographers can find the right tool to match their style.

