Canon RF28- vs Tamron 150-
Updated July 2026 — Canon RF28- wins on versatility and build, Tamron 150- wins on price and weight.
The Canon RF28-70mm F2 L USM Lens excels in versatility and low-light performance, while the Tamron 150-500mm lens offers excellent telephoto capabilities at a lower price.
Why Canon RF28- is better
Image Quality
Canon's constant f/2 aperture enhances low-light performance.
Versatility
Canon lens is suitable for various photography styles.
Build Quality
Canon lens features dust and water resistance.
Why Tamron 150- is better
Price
Tamron lens is significantly cheaper.
Telephoto Range
Tamron lens reaches up to 500mm.
Weight
Tamron lens is lighter for handheld shooting.
Overall score
Specifications
| Spec | Canon RF28- | Tamron 150- |
|---|---|---|
| Aperture | f/2 | f/5-6.7 |
| Focal Length | 28-70mm | 150-500mm |
| Weight | 1.8 lbs | 3.0 lbs |
| Stabilization | No | Yes |
| Compatibility | Canon EOS R | Sony Full Frame |
Dimension comparison
Overview of the Canon RF28-70mm F2 L USM Lens
The Canon RF28-70mm F2 L USM Lens is a premium zoom lens that caters to photographers looking for versatility and exceptional image quality. It features a constant maximum aperture of f/2 throughout its zoom range, which allows for excellent low-light performance and creative control over depth of field. The lens is priced at $3,399.00, making it a significant investment for serious photographers. This L-series lens is designed for Canon’s EOS R series mirrorless cameras, highlighting its compatibility with cutting-edge technology.
The Canon lens is particularly appealing for portrait photographers and those who often work in challenging lighting conditions. Its bright design ensures that subject isolation and image clarity are maintained, offering users an edge in various shooting scenarios.
Overview of the Tamron 150-500mm f/5-6.7 Di III VC VXD Lens
The Tamron 150-500mm f/5-6.7 Di III VC VXD Lens is an ultra-telephoto zoom lens designed for full-frame Sony mirrorless cameras. Priced at $1,199.00, it is about 65% cheaper than the Canon RF28-70mm lens. This lens is ideal for wildlife and sports photography, offering a remarkable zoom range that extends to 500mm. It is engineered to provide high image quality across its entire zoom range and features Vibration Compensation (VC) for improved handheld shooting stability.
The 150-500mm lens allows photographers to capture distant subjects with remarkable detail. Its lightweight and compact design makes it easier for users to shoot handheld, even at longer focal lengths, expanding the usability of ultra-telephoto photography.
Image Quality Comparison
In terms of image quality, the Canon RF28-70mm F2 L USM Lens boasts a bright and constant f/2 aperture, which enhances low-light performance and creates a beautiful bokeh effect. The lens is part of Canon's L-series, known for high image quality throughout its range. This ensures that images are sharp and vibrant, making it suitable for professional applications.
Conversely, the Tamron 150-500mm lens excels in the ultra-telephoto range, delivering uncompromising image quality even at its maximum focal length. The lens employs advanced optics to maintain clarity and detail, ensuring that images remain sharp from 150mm to 500mm. Photographers can expect high-quality results, especially in wildlife or sports settings where capturing motion is essential.
Autofocus Performance
The autofocus performance of the Canon RF28-70mm F2 L USM Lens is enhanced by its advanced USM technology, allowing for quick and quiet focusing. This is particularly beneficial for portrait photographers who need to capture fleeting moments without disturbing their subjects. The lens also features a control ring for direct setting changes, facilitating a seamless shooting experience.
On the other hand, the Tamron 150-500mm lens features high-speed, high-precision autofocus thanks to its VXD technology. This ensures that photographers never miss a moment, especially in dynamic environments. The autofocus system is designed to be quiet and fast, making it ideal for capturing wildlife or sports events where silence is key.
Build Quality and Design
The Canon RF28-70mm F2 L USM Lens is built to withstand challenging environmental conditions, featuring a dust- and water-resistant design with a fluorine coating. This durability makes it suitable for outdoor photography, ensuring that the lens performs reliably even in less-than-ideal settings. Its robust construction is a hallmark of Canon's L-series lenses, appealing to professionals who demand reliability.
In contrast, the Tamron 150-500mm lens is also designed with the photographer in mind, offering a compact and full-featured build that is surprisingly lightweight for a lens of this reach. This design allows for comfortable handheld shooting, making it easier to capture images at 500mm without the need for a tripod. While it may not have the same level of weather sealing as the Canon lens, it still offers a solid and durable construction.
Price Comparison
The price difference between these two lenses is substantial, with the Canon RF28-70mm F2 L USM Lens retailing at $3,399.00 and the Tamron 150-500mm lens available for $1,199.00. This makes the Tamron lens about $2,200 or 65% less expensive than the Canon option. For photographers on a budget or those who primarily shoot in the ultra-telephoto range, the Tamron lens represents a more accessible investment without sacrificing quality.
Intended Use and Versatility
The Canon RF28-70mm F2 L USM Lens is incredibly versatile, making it suitable for a variety of photography styles, including portrait, event, and even landscape photography. Its wide aperture allows for creative depth of field effects, making it a favorite among professionals. The lens's design integrates seamlessly with Canon’s EOS R series camera systems, enhancing overall performance.
The Tamron 150-500mm lens, on the other hand, is tailored for specific photography needs, particularly in wildlife and sports. The ability to reach a focal length of 500mm gives photographers the flexibility to capture distant subjects with ease. Its compact design also allows for versatility in casual settings, where handheld shooting is preferred. While it may not cover as wide a range as the Canon lens, it excels in its intended applications.
Which should you buy?
Choosing between the Canon RF28-70mm F2 L USM Lens and the Tamron 150-500mm f/5-6.7 Di III VC VXD Lens ultimately depends on your specific photography needs. If you require a versatile lens for a range of shooting scenarios, the Canon lens with its constant f/2 aperture offers superior low-light performance and image quality, albeit at a higher price. However, if your primary focus is wildlife or sports photography, the Tamron lens provides an excellent telephoto reach at a significantly lower price, making it a smart choice for more budget-conscious photographers. Ultimately, both lenses offer unique advantages tailored to different photographic styles.

