NEEWER EF to EOS R Mount Adapter

📦Biggest deals of the month! 
Ends July 22, 2024 at 2:00 pm
The product discount will be automatically applied once you add it to the cart.
SKU: 66602565

4 in stock

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


  • Expand Compatibility- NEEWER NW-EF-EOSR ARC lens adapter can connect any EF/EF-S lens to an EOS R camera, including EOS R Ra RP R5 R6 R3 R5C R7 R10 R6 Mark II R50 and R8. Notes: 1. This lens adapter does not support the AF-C in video mode. 2. A lens support bracket is necessary when using a lens weighing over 4.4lb/2kg
  • Customizable Control Ring- Use the integrated control ring to precisely adjust the shutter speed, aperture, ISO, and exposure compensation to your preference. The ergonomic knurls ensure smooth rotation and comfortable damping
  • Uncompromised Functions- Equipped with electrical contacts, the lens adapter retains autofocus and image stabilization capacities in your lens and keeps complete EXIF data from your camera
  • Firmware Updates Supported- Firmware updates help you fix bugs and optimize performance. Download the update file to your PC from NEEWER’s official website and connect the lens adapter to your PC with a micro USB cable (not included) for updating


  • Compatible Lenses: EF/EF-S lenses
  • Compatible Cameras: EOS R cameras (EOS R Ra RP R5 R6 R3 R5C R7 R10 R6 Mark II R50 and R8)
  • Front Mount: EF mount
  • Rear Mount: RF mount
  • USB Connection: Micro USB
  • Front Mount Diameter: 2.56” / 65mm
  • Rear Mount Diameter: 2.64” / 67mm
  • Length: 1.26” / 32mm
  • Weight: 3.7oz / 105g

Package Contents

  • 1 x NEEWER NW-EF-EOSR ARC Mount Adapter
  • 1 x User Manual
  • 1 x Front Cap
  • 1 x Rear Cap