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