NEEWER EF to EOS R Mount Adapter

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SKU: 66602654


All Neewer products carry a 2-Year Warranty and 45-day Return. Learn more at Warranty Policy.

Shipping Policy

Shipping from local warehouse based on your area, normally it takes 2~10 days for the delivery, Learn more at Shipping Policy.

Firmware & Manual

To download the product firmware or manual, please visit our Download Center.


Due to the impact of tariffs and logistics costs, prices vary by location.

WARNING:This product can expose you to chemicals including [Lead and Phthalates], which
is [are] known to the State of California to cause cancer. For more information go to


  • EF Lens for RF Mount Camera- This lens adapter is compatible with Canon EF/EF-S lens to an RF mount camera, compatible with Canon EOS R Ra RP R3 R5 R5C R6 R6 Mark II R7 R8 R10, and R50
  • Complete Functions Retained- Electrical contacts maintain fast speed autofocus, auto aperture control, image stabilization, and other functions on your lens while transferring EXIF data to your camera
  • Durable Metal Construction- The metal mounts on the front and back are durable and will not break, ensuring excellent weight capacity: 4.4lb/2kg. The smooth threads secure the lens and camera body perfectly as if it were a natural fit
  • Weather Resistant Structure- Manufactured with the same rigorous standard as your camera, this adapter can withstand rain, dust, and other harsh weather conditions


  • Model: NW-EF-EOSR
  • Compatible Lenses: EF/EF-S series lenses
  • Compatible Cameras: EOS RF mount cameras
  • Front Installation: EF/EF-S Lenses
  • Back Installation: EOS RF mount cameras
  • Camera Mount Outer Diameter: 2"/50mm
  • Lens Mount Outer Diameter: 2.6"/65mm
  • Length: 1.1"/29mm
  • Weight: 6.2oz/175g

Package Contents

  • 1 x EF-EOS R Lens Mount Adapter
  • 1 x Front Cap
  • 1 x Rear Cap
  • 1 x User Manual

Note: 1) The adapter does not support AF-C in video mode. 2) A lens support bracket is necessary if using a lens over 4.4lb/2kg

Why choose NEEWER?

👍Committed to Quality.

Quality is not just a slogan for us; NEEWER genuinely adheres to this principle. As a company that integrates research, design, production, and sales, all of our products undergo rigorous testing. Unlike other brands that offer a one-year warranty, we provide a two-year warranty. This confidence in our products stems from our unwavering commitment to quality.

🏆Amazon Best Seller

NEEWER products have become Best Sellers across multiple categories on Amazon, consistently achieving ratings of 4.8 and above. With a history spanning 13 years, our brand has been chosen by over 41.6 million users worldwide, boasting a repurchase rate of over 32%. Choosing NEEWER is a decision you won't regret!

🚛Local Warehouse Shipping

Logistical efficiency is crucial for enhancing customer purchasing experience. To reduce delivery times, we have established warehouses in various countries around the world. When you place an order, it will be shipped directly from a local warehouse. Typically, the entire process from order placement to delivery is completed within 3 to 7 business days.

⭐️5 Star Service

We offer multiple contact methods including online chat, email, phone, and multiple social media platforms ensuring a 100% response rate with a maximum response time of two business days. If you need any assistance, please feel free to contact us. We are committed to providing you with a satisfactory solution.