Canon RF100- vs Tamron
Updated July 2026 — Canon RF100- wins on zoom and stabilization, Tamron wins on price and weight.
The Canon RF100-400mm offers superior zoom capabilities and advanced features, while the Tamron 24mm is a lightweight, affordable option for casual photography.
Why Canon RF100- is better
Zoom Range
Canon offers a versatile 100-400mm zoom.
Stabilization
Canon has advanced optical image stabilization.
Autofocus
Canon features fast Nano USM autofocus.
Why Tamron is better
Price
Tamron is significantly cheaper at $199.
Weight
Tamron is lighter at 7.6 oz.
Compact Size
Tamron is more portable with a length of 2.5 inches.
Overall score
Specifications
| Spec | Canon RF100- | Tamron |
|---|---|---|
| Focal Length | 100-400mm | 24mm |
| Aperture | F5.6-8 | F2.8 |
| Min Focus | 2.89ft | 4.7in |
| Max Mag | 0.41x | 1:2 |
| Stabilization | Yes | No |
Dimension comparison
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 substantial zoom range and advanced features, making it a valuable addition to any photographer's kit.
This lens boasts a compact and lightweight design while delivering high image quality, thanks to its optical image stabilizer that corrects shake by up to 5.5 stops. If paired with an EOS R series camera that features In-Body Image Stabilization, users can achieve up to 6 stops of correction. The lens also has a minimum focusing distance of 2.89 feet at 200mm, allowing for detailed shots at a distance, and a maximum magnification of 0.41x at 400mm.
Overview of the Tamron 24mm F/2.8 Di III OSD M1:2
The Tamron 24mm F/2.8 Di III OSD M1:2 lens is a compact wide-angle lens available for $199.00, making it about 71% cheaper than the Canon RF100-400mm F5.6-8. This lens is ideal for capturing landscapes, city scenes, and everyday moments, providing a wide-angle field of view.
Weighing only 7.6 ounces and measuring 2.5 inches in length, this lens is designed for portability, making it perfect for all-day shooting adventures. With a maximum magnification ratio of 1:2, it excels in macro-style photography, allowing for unique close-up shots at a minimum object distance of just 4.7 inches. Additionally, its moisture-resistant construction and dirt-resistant fluorine coating enhance its outdoor usability.
Build Quality and Portability
In terms of build quality, the Canon RF100-400mm F5.6-8 is USM emphasizes a robust yet lightweight design, balancing portability with the need for durability in challenging shooting conditions. Its compact nature is similar to the EF 70-300mm lens, making it easy to carry without compromising on performance.
On the other hand, the Tamron 24mm F/2.8 Di III OSD M1:2 is extremely lightweight and compact, making it even more portable than the Canon lens. Its construction supports outdoor use, with moisture-resistant features that allow photographers to shoot confidently in various environments. The size and weight of the Tamron lens make it an excellent choice for anyone needing to pack light.
Image Quality and Performance
The Canon RF100-400mm F5.6-8 is USM delivers high image quality, thanks to its optical image stabilizer and Ultra Low Dispersion lens element, which corrects chromatic aberration. This ensures that photos remain sharp and vibrant across the entire zoom range, significantly enhancing the quality of wildlife and sports photography.
The Tamron 24mm F/2.8 Di III OSD M1:2 also provides impressive image quality, featuring special glass materials that minimize aberrations. Its f/2.8 aperture allows for beautiful bokeh effects in the background, making it ideal for landscape and close-up shots. Both lenses perform exceptionally well in their respective categories, but the Canon lens offers a greater zoom capability, while the Tamron excels in wide-angle contexts.
Autofocus Capabilities
The Canon RF100-400mm F5.6-8 is USM is equipped with Canon's Nano USM technology, providing fast, smooth, and quiet autofocus. This feature is particularly beneficial for wildlife and sports photographers who require quick and accurate focusing on moving subjects. The lens's autofocus performance is further enhanced when used with EOS R series cameras.
In contrast, the Tamron 24mm F/2.8 Di III OSD M1:2 features an optimized autofocus system that is well-suited for various shooting styles, including candid snapshots. While the autofocus is efficient, it may not match the speed and precision of the Canon lens, especially in dynamic shooting scenarios.
Pricing and Value
The Canon RF100-400mm F5.6-8 is USM is priced at $699.00, reflecting its advanced capabilities and versatility in a telephoto format. This lens is targeted toward serious photographers who require a robust tool for wildlife and sports photography.
The Tamron 24mm F/2.8 Di III OSD M1:2, priced at $199.00, offers exceptional value for those seeking a quality wide-angle lens without breaking the bank. Its affordability makes it an attractive option for beginners and casual photographers, especially considering it is about $500 cheaper than the Canon lens.
Which should you buy?
Choosing between the Canon RF100-400mm F5.6-8 is USM and the Tamron 24mm F/2.8 Di III OSD M1:2 depends largely on your photography needs. If you're focused on wildlife or sports photography and require a versatile telephoto lens, the Canon offers superior zoom capabilities, advanced stabilization, and quick autofocus, justifying its higher price.
Conversely, if you're a landscape or casual photographer seeking a lightweight, affordable wide-angle lens, the Tamron is an excellent choice, providing great performance at a significantly lower cost. Ultimately, both lenses excel in their respective categories, making your decision based on your specific photography style and budget.

