NEEWER EF to EOS R Mount Adapter, EF/EF-S Lens to RF Mount Camera Autofocus Converter Ring Compatible with Canon EOS R Ra RP R6 Mark II R6 R5 R3 R7 R10 R8 R50, Max Load: 4.4lb/2kg, NW-EF-EOSR
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Sep 24 – Sep 25
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Style: EF to EOS R
Features
- 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
- 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
Recommended Uses For Product: Video Recording, Outdoor
Brand: NEEWER
Model Name: NW-EF-EOSR
Connectivity Technology: USB
Connector Type: 3.5 mm Jack
Compatible Devices: Camera
Color: black
Included Components: 1 x EF-EOS R Lens Mount Adapter 1 x Front Cap 1 x Rear Cap 1 x User Manual
Item Weight: 7.87 Ounces
Microphone Form Factor: Overhead
Power Source: Corded Electric
Number of Channels: 1
Manufacturer: NEEWER
Package Dimensions: 6.02 x 4.8 x 2.91 inches
Item Weight: 7.9 ounces
Item model number: NW-EF-EOSR
Date First Available: April 24, 2023
Language: Spanish, Spanish, Spanish, Spanish, Spanish
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 24 – Sep 25
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: EF to EOS R
I purchased this adapter to use my old EF 500mm f/4L IS USM on my R7 and R8 as a backup to my Canon EF to RF adapter that has become quite worn. I have been using this adapter regularly for the past two months and overall performance has been on par with the Canon version. Build quality seems nice and solid and the lens and camera mount snugly but not tight. The lens performs just as it does with the Canon adapter and I feel that I can use it with confidence. For example, autofocus is just as fast and accurate, IS functions properly and I don’t ever lose connection between the lens and camera like has happened with at least one of the other third party adapters that I tried. I would not hesitate to recommend this adapter to a friend based on my experience with it.
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Reviewed in the United States on September 8, 2024 by Greg L
Style: EF to EOS R
I have had a positive experience with this brand before so I chose the adapter when I finally went mirrorless to bring over all my old lenses from my SLR. These adapters done have glass in them so you don’t have to worry about that quality. The electronic pass through is fine and all of the autofocus and other functions still work great. Seems pretty durable. I am using it with several lenses across two different cameras (r6mii and r100) both work great. It works with both EF and EF-S lenses and even works for using advanced functions via canon’s apps like the macro focus stacking. (Tested with the Ef-s 60mm macro)
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Reviewed in the United States on April 6, 2024 by John Tkalcich
Style: EF to EOS R
Works exactly as expected - zero issues using it with any of my EF lenses on my R8.
Reviewed in the United States on July 21, 2025 by Todd G.
Style: EF to EOS R
Fits well on my R7. Great value for the money you pay. Built quality is awesome. Very strong and hold lenses very well. It weighs good also. Not too heavy but feels good. Easy to use and I would buy again.
Reviewed in the United States on August 20, 2025 by Asora Tagoa'i
Style: EF to EOS R
Honestly it's just ok. It intermittently doesn't work with all my lenses. I had to upgrade to the canon version to have more reliability. It can work but if you have professional jobs to do I would skip.
Reviewed in the United States on May 14, 2025 by Jessica Collins
Style: EF to EOS R
I just switched to the R6 Mark II from a 6D Mk II so I have four lenses from Tamron with EF mounts. I have used Neewer products many times and always found them to be good quality at a decent price. The adapter is no different. I tested it with all for lenses and it works great. If you need an adapter, this is the one...
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Reviewed in the United States on June 21, 2024 by Twin Lakes Twin Lakes
Style: EF to EOS R
I've had this for a year or so. It worked OK with my smaller lenses, but recently I put my big 400mm lens on it, and there was trouble. The lens adapter got very wiggly and the electrical connections became poor... leading to camera error messages and the inability to shoot photos. Now, even with the small lenses, it's not working well. So, I completely regret buying this instead of the more expensive Canon version. As soon as I stopped using this generic adapter and forked out the $$$ for a real Canon one, everything started working just fine again. My advice: don't be cheap, buy the Canon version.
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Reviewed in the United States on June 28, 2025 by J. Zimmerlin
Style: EF to EOS R
When I bought my Canon RF camera , I was disappointed that my old EF lenses wouldn't work with it. This adapter takes care of that and now I can use all my lenses with one camera back.
Reviewed in the United States on December 9, 2024 by Gregory T. Smyth