Canon RF100mm F2.8 L Macro is USM Lens, Medium vs Tamron 18-
Updated July 2026 — Canon RF100mm F2.8 L Macro is USM Lens, Medium wins on image quality and stabilization, Tamron 18- wins on price and versatility.
The Canon RF100mm F2.8 L Macro lens excels in image quality and stabilization, while the Tamron 18-300mm offers versatility at a lower price.
Why Canon RF100mm F2.8 L Macro is USM Lens, Medium is better
Image Quality
Canon lens provides superior sharpness and detail.
Stabilization
Canon lens features advanced optical image stabilization.
Aperture
Canon lens has a brighter f/2.8 maximum aperture.
Why Tamron 18- is better
Versatility
Tamron lens offers a 16.6x zoom range.
Price
Tamron lens is significantly cheaper.
Weight
Tamron lens is more compact and lightweight.
Overall score
Specifications
| Spec | Canon RF100mm F2.8 L Macro is USM Lens, Medium | Tamron 18- |
|---|---|---|
| Focal Length | 100mm | 18-300mm |
| Max Aperture | f/2.8 | f/3.5-6.3 |
| Max Magnification | 1.4x | 1:2 |
| Weight | 1.5 lbs | 1.5 lbs |
| Stabilization | Hybrid IS | VC |
Dimension comparison
Overview of the Canon RF100mm F2.8 L Macro is USM Lens
The Canon RF100mm F2.8 L Macro is USM Lens is designed specifically for full-frame EOS R series cameras, offering high-quality imaging for macro and portrait photography. Priced at $1,248.95, this lens features a maximum magnification of 1.4x, making it the world’s first medium telephoto macro lens of its kind. With a bright f/2.8 aperture, it excels in low-light conditions while providing beautiful background blur. The lens is engineered for precision with a robust optical image stabilization system that compensates for camera shake, ensuring sharp images even during close-up shooting.
Overview of the Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD Zoom Lens
The Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD Zoom Lens offers a versatile zoom range at an attractive price of $599.00. This all-in-one lens is compatible with Canon R APS-C mirrorless cameras and is notable for its 16.6x zoom capability, allowing photographers to capture a wide array of scenes, from landscapes to wildlife. The lens features a maximum magnification ratio of 1:2, which is impressive for a zoom lens. With its compact and lightweight design, the Tamron lens is particularly suited for travel and everyday photography, making it a convenient choice for those on the go.
Image Quality Comparison
When it comes to image quality, the Canon RF100mm F2.8 L Macro is USM Lens stands out with its fixed focal length and bright f/2.8 maximum aperture, delivering high-quality images with excellent sharpness and detail. The lens includes features like Spherical Aberration Control, allowing photographers to adjust the character of the bokeh, which is particularly advantageous for macro and portrait work. On the other hand, the Tamron 18-300mm lens, while versatile, has a variable aperture range of f/3.5 to f/6.3, which may limit its performance in low-light conditions compared to Canon's offering. Therefore, if image quality and macro capability are paramount, the Canon lens is the superior option.
Versatility and Range
The Tamron 18-300mm lens excels in versatility due to its extensive zoom range, allowing for wide-angle to ultra-telephoto photography without the need for multiple lenses. This makes it an excellent choice for various photography styles, including landscapes, portraits, and wildlife. In contrast, the Canon RF100mm F2.8 lens, while specialized for macro and portrait photography, does not offer the same flexibility in focal lengths. For photographers looking for an all-in-one solution, the Tamron lens provides a broader spectrum of shooting opportunities, making it the more versatile choice.
Autofocus and Stabilization
Autofocus performance is another critical consideration. The Canon RF100mm F2.8 L Macro lens features fast and precise autofocus, ideal for capturing intricate macro details and fleeting moments in portraiture. It also boasts a robust optical image stabilization system with up to 5 stops of shake correction, which is a significant advantage when shooting close-up or in challenging lighting conditions. The Tamron 18-300mm lens includes a linear motor focus mechanism and a Vibration Compensation (VC) system, providing stable shooting experiences. However, while both lenses have effective stabilization, the Canon lens offers superior stabilization specifically optimized for macro photography.
Build Quality and Design
In terms of build quality, the Canon RF100mm F2.8 L Macro lens is constructed with professional-grade materials, ensuring durability and reliability, especially in demanding shooting environments. Its design caters to serious photographers who prioritize performance and longevity. The Tamron 18-300mm lens, while also well-built, is designed with a compact and lightweight approach, making it easy to carry. This design is particularly appealing for travel photography, but it may not match the ruggedness of the Canon lens. Therefore, photographers who prioritize build quality may lean towards Canon’s offering, while those seeking portability might prefer Tamron.
Price Comparison
The Canon RF100mm F2.8 L Macro lens is priced at $1,248.95, while the Tamron 18-300mm lens is significantly cheaper at $599.00, making it about 52% less expensive. This substantial price difference is a crucial factor for many buyers. While the Canon lens offers advanced features and specialized capabilities for macro photography, the Tamron lens provides a more budget-friendly option for photographers who need versatility without the high price tag. Therefore, the choice may largely depend on budget considerations and specific photographic needs.
Which should you buy?
Deciding between the Canon RF100mm F2.8 L Macro is USM Lens and the Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD Zoom Lens ultimately hinges on your photographic style and requirements. If you are focused on high-quality macro and portrait photography and require superior image stabilization, the Canon lens is the clear choice despite its higher price. However, if you need a versatile all-in-one lens at a more accessible price point, the Tamron lens provides excellent value and flexibility for various photography genres. Consider your priorities in terms of image quality, versatility, and budget before making a purchase.

