The Canon EF-EOS R Mount Adapter is a must-have accessory for photographers using Canon’s latest mirrorless cameras like the EOS RP, EOS R, EOS R6, and EOS R5. This adapter allows you to use your existing EF and EF-S lenses with your new camera, saving you from buying new lenses.
This adapter is designed to match the look of EF lenses and is both dust- and water-resistant. It features a metal mount on both the lens and camera sides, ensuring durability and flexibility.
One user shared their experience with the adapter on their new R5 camera. They initially received an opened package with the wrong rear cap but got a replacement that was perfect. The adapter worked flawlessly with all their EF lenses, including third-party ones, providing fast autofocus and excellent compatibility.
Another user upgraded to an R6ii from a 5Diii and was pleased with the adapter. They found that their EF-L lenses performed even better with the new camera. The adapter connected tightly with no loss in quality, making it an excellent and affordable solution.
Compatibility with Canon Cameras

The Canon EF-EOS R Mount Adapter is designed to work seamlessly with a range of Canon cameras, including the EOS RP, EOS R, EOS R6, and EOS R5. This means you can use your existing EF and EF-S lenses with these new mirrorless models without any issues. The adapter ensures that all your lenses function as they should, providing you with the same quality and performance you expect from Canon products.
High-Quality Design

One of the standout features of this adapter is its high-quality design. Both the lens and camera sides have metal mounts, giving it a robust and durable feel. The exterior design also matches well with EF lenses, ensuring a cohesive look when attached to your camera. This attention to detail makes it a reliable choice for photographers who need an adapter that can withstand regular use.
Dust and Water Resistance
The Canon EF-EOS R Mount Adapter is built to withstand various environmental conditions. It is both dust- and water-resistant, making it a great option for outdoor photography. Whether you’re shooting in a dusty location or in light rain, this adapter ensures that your gear remains protected, allowing you to focus on capturing the perfect shot.
Seamless Lens Compatibility
This adapter opens up a world of possibilities by allowing you to use EF and EF-S lenses with Canon’s latest mirrorless cameras. This means you don’t have to invest in new RF lenses immediately. Many users have reported that their existing lenses perform exceptionally well with the adapter, maintaining fast autofocus and excellent image quality.
User Reviews and Feedback
Customers have been overwhelmingly positive about the Canon EF-EOS R Mount Adapter. Many appreciate its perfect fit and the fact that it allows them to use their favorite lenses with new camera models. Some users have noted that the adapter feels sturdy and reliable, adding that it integrates well with their existing gear.
Cost-Effective Solution
One of the biggest advantages of this adapter is its cost-effectiveness. Priced at $129.00, it offers a budget-friendly way to transition to Canon’s mirrorless system. Instead of spending a lot on new RF lenses, you can continue using your trusted EF and EF-S lenses, making this adapter a smart investment for any photographer.
Ease of Use
The Canon EF-EOS R Mount Adapter is very user-friendly. It’s easy to attach and detach, and it comes with a small bag for safe storage. This makes it convenient for photographers who are always on the go. The adapter also comes with the necessary caps to protect both ends, ensuring that it remains in good condition when not in use.
Performance and Reliability
Users have highlighted the adapter’s performance and reliability. It provides a tight fit without any wiggle, ensuring that your lenses stay securely attached. Many have noted that the autofocus speed is impressive, even with older lenses. This reliable performance makes it a must-have accessory for anyone using Canon’s mirrorless cameras.
Quality Assurance
Even though the adapter is made in Taiwan, it meets Canon’s high standards for quality. Users have reported that it feels well-made and durable. Some prefer products made in Japan, but the overall feedback suggests that this adapter performs well and lives up to Canon’s reputation for quality.
Comprehensive Package
When you purchase the Canon EF-EOS R Mount Adapter, make sure all the accessories are included. It should come with EF front and RF back caps, a small storage bag, a manual, and a warranty card. Ensuring you have all these items will help you get the most out of your adapter.
Pros:
- Allows you to use EF/EF-S lenses with newer Canon R series cameras.
- Maintains fast autofocus and compatibility with a wide range of lenses.
- Sturdy design with dust and water resistance for durability.
Cons:
- Made in Taiwan, which some users might prefer to be made in Japan.
- Adds extra length to the setup, especially with longer lenses.
- Some units might come with incorrect caps if returned, so check for all accessories.
Conclusion
In summary, the Canon EF-EOS R Mount Adapter is a great investment for those transitioning to Canon’s mirrorless system. It allows you to use your existing EF and EF-S lenses without compromising on performance.
With high ratings and positive reviews, this adapter is a reliable and cost-effective option. Whether you’re a professional or an amateur photographer, this adapter offers great value and quality.
Questions & Answers:
Question: Can I use my old EF lenses with the Canon R5 camera?
Answer: Yes, the adapter allows you to use your old EF lenses with the Canon R5 camera with no loss in quality.
Question: Is the adapter compatible with third-party lenses?
Answer: Yes, the adapter works well with third-party lenses like Sigma, maintaining fast autofocus and performance.
Question: What should I check for when I receive my adapter?
Answer: Ensure it comes with the correct RF back cap, EF front cap, adapter bag, manual, and warranty information.
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