Canon RF28- vs Tamron 150-
Updated July 2026 — Canon RF28- leads on aperture and weight.
The Canon RF28-70mm offers superior low-light performance and versatility, while the Tamron 150-500mm excels in telephoto capabilities. Choose based on your specific photography needs.
Why Canon RF28- is better
Aperture
Constant f/2.8 aperture for low-light shooting
Weight
Lighter and more portable for everyday use
Image Quality
Superior edge-to-edge sharpness in various conditions
Why Tamron 150- is better
Focal Length
Longer reach up to 500mm for distant subjects
Close-Up
Minimum object distance of 23.6 inches for dramatic close-ups
Coating
BBAR-G2 coating for enhanced clarity and contrast
Overall score
Specifications
| Spec | Canon RF28- | Tamron 150- |
|---|---|---|
| Aperture | f/2.8 | f/5-6.7 |
| Focal Length | 28-70mm | 150-500mm |
| Weight | 1.0 lb | 3.0 lb |
| Weather Resistance | Yes | Yes |
| Close Focus | N/A | 23.6 in |
Dimension comparison
Overview of the Canon RF28-70mm F2.8 IS STM
The Canon RF28-70mm F2.8 IS STM lens is a versatile mid-range zoom lens designed for both still and video content creators. Priced at $1,098.95, it offers a fixed f/2.8 aperture throughout its zoom range, making it ideal for low-light situations and creative depth-of-field effects. This lens is particularly lightweight and compact, weighing just over one pound, making it a convenient everyday carry option for photographers.
The RF28-70mm features newly designed Image Stabilization, which enhances the overall shooting experience by allowing for a lighter lens build. With its impressive edge-to-edge image quality, attributed to two UD elements and two aspheric lenses, this lens minimizes chromatic aberration effectively. Additionally, its weather-resistant construction makes it durable enough for use in harsh environments, comparable to Canon's L-series lenses.
Overview of the Tamron 150-500mm F/5-6.7 Di III VC VXD
The Tamron 150-500mm F/5-6.7 Di III VC VXD lens is a superb choice for Nikon Z mount mirrorless cameras, priced at $1,199.00. This compact full-frame lens is designed for super-telephoto shooting, allowing photographers to capture distant subjects with remarkable clarity. It reaches up to 500mm, which translates to 750mm on crop-sensor cameras, providing extensive versatility in various shooting scenarios.
One of the standout features of the Tamron lens is its BBAR-G2 coating, which enhances image quality by delivering stunning clarity and contrast while controlling aberrations. The lens also incorporates moisture-resistant construction and a fluorine coating, ensuring durability and protection against the elements. Weighing only 8.4 inches in length when retracted and extending to 11.3 inches, it remains a travel-friendly option for photographers looking to explore ultra-telephoto capabilities.
Image Quality Comparison
When it comes to image quality, both lenses offer exceptional performance but cater to different needs. The Canon RF28-70mm is engineered for high image quality throughout its entire zoom range, utilizing advanced lens elements to minimize chromatic aberration effectively. Photographers can expect crisp, clear images even in challenging lighting conditions, thanks to its fast f/2.8 aperture.
On the other hand, the Tamron 150-500mm excels in delivering edge-to-edge sharpness at longer focal lengths. Its high resolving power and anti-reflection coatings contribute to stunning image clarity, making it an excellent choice for wildlife and sports photography. The lens's ability to achieve dramatic close-ups with a minimum object distance of 23.6 inches adds to its versatility, enabling users to capture intricate details from afar.
Aperture and Low-Light Performance
The Canon RF28-70mm boasts a constant f/2.8 aperture, which offers significant advantages in low-light conditions. This feature allows photographers to shoot at faster shutter speeds without sacrificing exposure, making it ideal for indoor events or evening shoots. The ability to achieve beautiful bokeh effects, thanks to the wide aperture, further enhances its appeal for portraiture.
Conversely, the Tamron 150-500mm has a variable aperture range of f/5 to f/6.7. While it may not perform as well in low-light environments compared to the Canon lens, it is designed to excel in daylight conditions or well-lit situations. This difference in aperture performance may influence the choice for photographers who frequently shoot in dim lighting, as the Canon lens would provide more creative control.
Build Quality and Durability
In terms of build quality, both lenses are designed to withstand demanding conditions. The Canon RF28-70mm features a weather-resistant construction that is comparable to L-series lenses, making it suitable for outdoor use in various weather conditions. Its lightweight design adds to its portability, allowing photographers to carry it easily.
The Tamron 150-500mm also emphasizes durability with its moisture-resistant construction and fluorine coating. This lens is made to handle challenging outdoor environments, ensuring that photographers can focus on their craft without worrying about the elements. The protective front portion of the lens hood further enhances its ruggedness, making it a reliable option for adventurous shooting.
Pricing and Value
With a price tag of $1,098.95, the Canon RF28-70mm is about 8.4% cheaper than the Tamron 150-500mm, which retails for $1,199.00. While the price difference may seem modest, it reflects the differing capabilities and target markets for each lens. The Canon lens offers a fixed aperture and versatility for everyday shooting, making it a valuable addition for general photographers and videographers.
In contrast, the Tamron lens, while slightly more expensive, provides extensive telephoto capabilities and is tailored for specialized photography, such as wildlife and sports. The investment in the Tamron lens may be justified for those who require the additional reach and versatility in the ultra-telephoto range.
Which should you buy?
Choosing between the Canon RF28-70mm and the Tamron 150-500mm ultimately depends on your photography needs. If you seek a lightweight, versatile lens for everyday use, the Canon RF28-70mm is an excellent option that provides exceptional low-light performance and image quality. However, if your focus is on capturing distant subjects with superb clarity and you require a super-telephoto lens, the Tamron 150-500mm would be the better choice despite its higher price. Consider your shooting style and requirements to make the best decision for your photography gear collection.

