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Canon RF100- vs Tamron 28-

Updated July 2026 — Canon RF100- wins on zoom and stabilization, Tamron 28- wins on aperture.

The Canon RF100-400mm offers superior zoom capabilities and price, while the Tamron 28-75mm excels in versatility and low-light performance.

Why Canon RF100- is better

Price

Canon is $50 cheaper than Tamron

Zoom Range

Canon offers a longer zoom range of 100-400mm

Weight

Canon is lighter, enhancing portability

Why Tamron 28- is better

Aperture

Tamron has a constant f/2.8 aperture

Close Focus

Tamron has a minimum object distance of 7.1 inches

Build Quality

Tamron features a fluorine coating for better durability

Overall score

Canon RF100-
88
Tamron 28-
82

Specifications

SpecCanon RF100-Tamron 28-
Price$699.00$749.00
Focal Length100-400mm28-75mm
Max Aperturef/5.6-8f/2.8
Min Focus2.89ft7.1in
Image StabilizationYesNo

Dimension comparison

Canon RF100-Tamron 28-

Overview of the Canon RF100-400mm F5.6-8 is USM

The Canon RF100-400mm F5.6-8 is USM is a versatile telephoto lens designed for wildlife, sports, and travel photography. Priced at $699.00, it offers a significant zoom range from 100mm to 400mm, making it ideal for capturing distant subjects. This lens features an Optical Image Stabilizer that provides up to 5.5 stops of shake correction, which can increase to 6 stops when paired with compatible EOS R series cameras. With a minimum focusing distance of 2.89 feet at 200mm and a maximum magnification of 0.41x at 400mm, it ensures impressive detail in faraway shots. Its lightweight and compact design further enhances its portability, making it a great choice for photographers on the go.

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 standard zoom lens tailored for Nikon Z mount mirrorless cameras, priced at $749.00. This lens stands out for its constant f/2.8 aperture throughout its zoom range, allowing for excellent low-light performance and depth of field control. With a minimum object distance of 7.1 inches, it offers a maximum magnification ratio of 1:2.7, making it suitable for creative close-ups. Weighing just 19.4 ounces and measuring 4.7 inches in length, its lightweight, moisture-resistant construction and fluorine coating enhance durability and usability in various shooting conditions.

Price Comparison

When evaluating price, the Canon RF100-400mm is priced at $699.00, while the Tamron 28-75mm comes in at $749.00. This makes the Canon about 7% cheaper than the Tamron. For photographers looking to save on their investment, the lower price of the Canon lens presents a compelling option. However, it’s essential to weigh the price against the specific features and capabilities each lens offers, especially when considering the intended use and type of photography.

Optical Performance

The Canon RF100-400mm boasts high-image quality with its advanced optical design, featuring an Ultra Low Dispersion lens element that minimizes chromatic aberration. This results in crisp, colorful images across its zoom range. In contrast, the Tamron 28-75mm is known for its excellent optical performance, particularly suited for high-resolution sensors. It incorporates a fast and quiet VXD linear motor for autofocus, ensuring sharp images even at close distances. The Canon’s strength lies in its long reach, while the Tamron excels in versatility with its constant f/2.8 aperture, providing a different kind of optical benefit.

Autofocus Capabilities

The autofocus systems of both lenses are impressive but tailored to different needs. The Canon RF100-400mm features Canon’s Nano USM technology, providing smooth, fast, and quiet autofocus, making it especially suitable for capturing fast-moving subjects like wildlife or sports. On the other hand, the Tamron 28-75mm utilizes a VXD linear motor for high-speed and high-precision autofocus, which is also silent, making it ideal for video recording and still photography alike. Depending on whether you prioritize speed for action shots or precision for stills, either lens has its advantages.

Build Quality and Design

In terms of build quality, both lenses offer durable designs. The Canon RF100-400mm is compact and lightweight, making it easy to carry during long shoots. It also supports moisture-resistant construction, which is beneficial for outdoor photography. Similarly, the Tamron 28-75mm features a moisture-resistant design and a fluorine coating that protects the lens from dirt and fingerprints. Both lenses are designed with usability in mind, but the Canon’s additional reach and lightweight nature may appeal more to those focused on wildlife or sports photography.

Use Cases

Each lens serves different photographic needs. The Canon RF100-400mm is perfect for photographers who require a long zoom range for wildlife, sports, or landscape photography where subjects may be far away. Its optical stabilization features enhance handheld shooting, crucial for telephoto photography. Conversely, the Tamron 28-75mm is ideal for everyday use, portrait photography, and events, thanks to its versatility and constant aperture. It caters to photographers looking for a reliable all-purpose lens that performs well in various situations.

Which should you buy?

Choosing between the Canon RF100-400mm F5.6-8 is USM and the Tamron 28-75mm F/2.8 Di III VXD G2 ultimately depends on your specific photography needs. If you require a long-range telephoto lens for capturing distant subjects, the Canon, priced at $699.00, offers excellent features and image quality, making it a solid choice. Alternatively, if you need a versatile, all-around lens for everyday photography with a constant f/2.8 aperture, the Tamron, priced at $749.00, provides great optical performance and usability. Your decision should align with the type of photography you plan to pursue, ensuring you choose the lens that best fits your creative vision.