Canon RF28- vs Tamron 28-
Updated July 2026 — Canon RF28- wins on weight and aperture, Tamron 28- wins on autofocus.
The Canon RF28-70mm F2 L USM Lens offers superior image quality and low-light performance, while the Tamron 28-75mm F/2.8 G2 provides excellent value and versatility for everyday use.
Why Canon RF28- is better
Image Quality
Constant f/2 aperture for better low-light performance
Build Quality
Dust- and water-resistant design
Professional Use
Ideal for a wide range of photography scenarios
Why Tamron 28- is better
Price
Significantly lower cost at $749
Compactness
Lighter and easier to handle
Autofocus
Fast and quiet VXD linear motor
Overall score
Specifications
| Spec | Canon RF28- | Tamron 28- |
|---|---|---|
| Max Aperture | f/2 | f/2.8 |
| Focal Length | 28-70mm | 28-75mm |
| Weight | 2.5 lbs | 1.2 lbs |
| Close Focus | 0.18m | 0.18m |
| Weather Sealing | Yes | Yes |
Dimension comparison
Overview of the Canon RF28-70mm F2 L USM Lens
The Canon RF28-70mm F2 L USM Lens is a high-performance zoom lens designed for EOS R series mirrorless cameras. Priced at $3,399.00, it features a constant f/2 maximum aperture, making it ideal for low-light conditions and providing excellent depth of field control. The lens is part of Canon's L-series, known for its superior image quality, and is also dust- and water-resistant, ensuring durability in various shooting environments.
This lens is particularly suited for photographers who need versatility in their focal range, from wide angle to portrait, all while maintaining exceptional image quality.
Overview of the Tamron 28-75mm F/2.8 Di III VXD G2
The Tamron 28-75mm F/2.8 Di III VXD G2 is a compact and versatile lens for Nikon Z mount mirrorless cameras, available for $749.00. It offers a fast f/2.8 maximum aperture, making it a solid choice for a variety of shooting situations. This lens is equipped with a VXD linear motor for high-speed and high-precision autofocus, which enhances the shooting experience, especially in dynamic settings.
Its close-up capability, with a minimum object distance of 7.1 inches, allows for creative photography, making it a great choice for everyday use, particularly for those who value compactness and ease of handling.
Price Comparison
When it comes to price, there is a significant difference between the two lenses. The Canon RF28-70mm F2 L USM Lens is priced at $3,399.00, while the Tamron 28-75mm F/2.8 G2 is much more accessible at $749.00. This makes the Tamron lens approximately 78% cheaper than the Canon offering. For photographers on a budget or those just starting out, the Tamron provides excellent value without sacrificing essential features.
The price difference is a crucial factor for many buyers, particularly those who may not require the premium features of the Canon lens or are looking to invest elsewhere in their photography setup.
Image Quality and Performance
In terms of image quality, the Canon RF28-70mm F2 L USM Lens boasts a constant f/2 aperture, which allows for superior low-light performance and exceptional bokeh. Being an L-series lens, it is designed to deliver high image quality throughout its zoom range. The fluorine coating also helps to enhance image clarity by reducing flare and ghosting.
On the other hand, the Tamron 28-75mm F/2.8 G2, while offering a slightly slower f/2.8 aperture, still delivers impressive optical performance. It is designed to handle high pixel resolution, making it suitable for modern digital cameras. The VXD linear motor contributes to its quick autofocus, which can be beneficial for capturing fast-moving subjects.
Build Quality and Durability
The Canon RF28-70mm F2 L USM Lens is built to withstand challenging environmental conditions, featuring a dust- and water-resistant design alongside a fluorine coating. This makes it a reliable choice for outdoor photography, where weather conditions can be unpredictable.
Conversely, the Tamron 28-75mm F/2.8 G2 is also moisture-resistant and utilizes a fluorine coating, ensuring that it remains protected during use. However, its more compact size and lighter weight, at just 19.4 ounces, make it easier to handle for extended periods, especially for photographers who are frequently on the move.
Autofocus and Usability
The autofocus performance differs between the two lenses, with the Tamron 28-75mm F/2.8 G2 utilizing a fast and quiet VXD linear motor. This feature enhances its usability for both still photography and video shooting. The lens’s design aims for comfort, incorporating a rubber focusing ring that provides a secure grip during operation.
In contrast, the Canon RF28-70mm F2 L USM Lens also features a responsive autofocus system, but its primary draw is the constant f/2 aperture, which allows for greater control over depth of field. While both lenses provide excellent usability, the Tamron's design leans towards everyday convenience, catering to a broader range of photography scenarios.
Versatility in Shooting Situations
The Canon RF28-70mm F2 L USM Lens offers a wider aperture, making it exceptionally versatile for professional photographers who need to shoot in various lighting conditions. Its 28-70mm range is suitable for everything from landscapes to portraits, providing a reliable option for diverse shooting needs.
Meanwhile, the Tamron 28-75mm F/2.8 G2 serves as an ideal everyday lens for Nikon full-frame mirrorless camera users. Its zoom range and compact design make it perfect for travel and casual photography. Although it has a narrower aperture, its close-up capabilities with a maximum magnification ratio of 1:2.7 add to its versatility.
Which should you buy?
Choosing between the Canon RF28-70mm F2 L USM Lens and the Tamron 28-75mm F/2.8 Di III VXD G2 largely depends on your budget and specific photography needs. If you require professional-grade performance, the Canon offers remarkable image quality and low-light capabilities at a higher price. However, if you're looking for an affordable, versatile, and compact lens for everyday use, the Tamron stands out as an excellent choice. Ultimately, both lenses have their unique strengths, catering to different types of photographers and budgets.

