Canon RF75- vs Tamron 70-
Updated July 2026 — Canon RF75- wins on focal range and aperture, Tamron 70- wins on weight and filter size.
The Canon RF75-300mm is an affordable option for casual photographers, while the Tamron 70-180mm offers superior performance for serious users.
Why Canon RF75- is better
Price
Canon is significantly cheaper at $239.
Weight
Canon is lightweight and portable.
Included Accessories
Canon includes a UV filter and cleaning kit.
Why Tamron 70- is better
Aperture
Tamron has a faster F/2.8 aperture.
Build Quality
Tamron features moisture-resistant construction.
Autofocus
Tamron has advanced autofocus capabilities.
Overall score
Specifications
| Spec | Canon RF75- | Tamron 70- |
|---|---|---|
| Price | $239.00 | $999.00 |
| Zoom Range | 75-300mm | 70-180mm |
| Image Stabilization | No | Yes |
| Moisture Resistance | No | Yes |
| Autofocus Type | Eye Detection | VXD |
Dimension comparison
Overview of the Canon RF75-300mm and Tamron 70-180mm Lenses
When comparing the Canon RF75-300mm F4-5.6 Zoom Lens and the Tamron 70-180mm F/2.8 Di III VC VXD G2, there are significant differences in price, focal length, and features. The Canon lens is priced at $239.00, making it about 76% less expensive than the Tamron lens, which retails for $999.00. This drastic price difference reflects the varying target markets and capabilities of each lens.
Focal Length and Aperture
The Canon RF75-300mm offers an impressive zoom range, reaching up to 300mm, which is ideal for wildlife photography or capturing distant subjects. In contrast, the Tamron 70-180mm provides a constant aperture of F/2.8, which is advantageous for low-light shooting and achieving a shallow depth of field. While the Canon lens allows for greater zoom flexibility, the Tamron’s faster aperture can deliver superior image quality and performance in various lighting conditions.
Build Quality and Design
The Tamron lens is designed with moisture-resistant construction and features a fluorine coating, ensuring durability in challenging environments. This lens measures 6.2 inches in length and weighs 30.2 oz, making it relatively compact for a lens with its specifications. The Canon RF75-300mm, while lightweight at approximately the weight of a 500ml water bottle, does not explicitly mention moisture resistance. If outdoor shooting in various weather conditions is a priority, the Tamron may be the more reliable option.
Autofocus Performance
When it comes to autofocus, the Tamron 70-180mm excels with its VXD (Voice-coil eXtreme-torque Drive) linear motor, designed for high-speed and high-precision autofocus. This feature greatly enhances subject tracking, making it suitable for action or fast-moving subjects. The Canon RF75-300mm also offers effective autofocus, including eye detection at longer focal lengths, which is beneficial for portrait photography. However, the advanced autofocus capabilities of the Tamron may offer a more versatile shooting experience overall.
Included Accessories
The Canon RF75-300mm lens comes as part of a package that includes a UV filter, a lens cap keeper, and a cleaning kit, enhancing the overall value of the purchase at $239.00. These accessories can help maintain the lens and improve usability right out of the box. The Tamron 70-180mm, while not including additional accessories in its price, is designed to be a premium product focused on delivering superior optical performance, which may justify its higher price point for serious photographers.
Target Users
The Canon RF75-300mm is particularly suited for casual photographers and those looking for an affordable option to enhance their photography without the burden of high costs. Its compact size and versatile zoom range make it an excellent choice for travel and everyday use. On the other hand, the Tamron 70-180mm is aimed at more serious photographers who require a fast aperture and superior build quality, making it ideal for both professional use and advanced hobbyists willing to invest in their gear.
Image Quality
The Tamron 70-180mm is designed to deliver high image quality across its zoom range, thanks to its revamped optical design. This lens is intended to minimize optical aberrations and maintain clarity, even at its maximum aperture of F/2.8. The Canon RF75-300mm, while capable of producing decent images, may not match the optical performance of the Tamron, especially in low-light scenarios or when shooting at wider apertures. This difference in image quality is an essential consideration for photographers who prioritize sharpness and clarity.
Which should you buy?
Choosing between the Canon RF75-300mm F4-5.6 Zoom Lens and the Tamron 70-180mm F/2.8 Di III VC VXD G2 ultimately depends on your specific needs and budget. If you're looking for an affordable, lightweight lens for casual photography, the Canon at $239.00 is a solid choice. However, if you’re a serious photographer seeking high-quality images, advanced autofocus, and superior build quality, the Tamron priced at $999.00 provides excellent value for its capabilities. Consider your shooting style and priorities carefully to make the best decision for your photography needs.

