Search  for anything...
Canon

Canon Mount Adapter EF-EOS R

    • Based on 2,210 reviews
Condition: New
Checking for product changes
$129.00 Why this price?

Buy Now, Pay Later

As low as $21.50 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

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.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Apr 30
Order within 21 hours and 45 minutes
Available payment plans shown during checkout

Features

  • Standard Mount Adapter allows EF/EF-S lens compatibility with EOS RP, EOS R, EOS R6, and EOS R5 Cameras
  • Exterior design matched to EF lenses
  • Dust- and water-resistant
  • Metal mount on both Lens and camera sides provides rugged flexibility

Description

The new Canon standard mount Adapter allows for EF/EF-S lens compatibility with the new EOS R mirrorless Digital Camera system.

Compatible Mountings: Canon EF, Canon EF/EF-S


Aspect Ratio: 32


Photo Sensor Technology: CMOS


Supported File Format: RAW


Image Stabilization: Digital


Maximum Focal Length: 105 Millimeters


Maximum Aperture: 20 Millimeters


Brand: Canon


Model Name: CANON MOUNT ADAPTER EF-EOS R


Maximum Webcam Image Resolution: 30.3 MP


Brand: Canon


Model Name: CANON MOUNT ADAPTER EF-EOS R


Built-In Media: LENS DUST CAP RF, CANON MOUNT ADAPTER EF-EOS R, Soft Case, Camera Cover R-F-3


Are Batteries Included: No


Model Number: 2971C002


Remote Included: No


Model Series: EF-EOS R


Global Trade Identification Number: 86


UPC: 013803304886


Item Type Name: Canon cameras us ef-eos r new mount adapter, black, full-size (2971c002).


Item Height: 0.9 inches


Manufacturer: Canon


Connectivity Technology: USB


Wireless Technology: Wi-Fi


Total USB Ports: 1


Total Video Out Ports: 1


Shooting Modes: Automatic


Digital-Still: Yes


Movie Mode: Yes


Image Capture Type: Video


Night vision: No


Compatible Mountings: Canon EF, Canon EF/EF-S


Sensor Type: CMOS


Image stabilization: Digital


Maximum Aperture: 20 Millimeters


Photo Sensor Resolution: 30.3 MP


Photo Sensor Size: Full Frame (35mm)


Maximum Shutter Speed: 1 seconds


Minimum Shutter Speed: 1 seconds


Form Factor: Mirrorless


Special Feature: Canon EF/EF-S Lens to EOS R Camera; Dust- and Water-Resistant


Color: Black


Item Weight: 3.9 ounces


Video Resolution: 1080p


Viewfinder: Electronic


Flash Modes: Various flash modes supported


Camera Flash: no flash


Skill Level: Professional


Specific Uses For Product: Videography


Compatible Devices: Canon EF lenses


Continuous Shooting: 60 fps


Aperture modes: f/22


Flash Sync Speed: 1/200


Video Capture Format: MP4


Water Resistance Level: Water Resistant


Frame Rate: 30 fps (4K), 60 fps (Full HD)


Mount Type: lens mount


Item Width Side To Side: 0.9"D x 2.8"W x 2.8"H


Minimum Aperture: 20 Millimeters


Warranty Type: Limited


Shutter Type: Rolling Shutter


Aspect Ratio: 32


File Format: RAW


Effective Still Resolution: 30.3 MP


JPEG Quality Level: Normal


Supported Image Format: RAW


Total Still Resolution: 3E+1 MP


Maximum Focal Length: 105 Millimeters


Lens Type: Standard


Zoom: Varifocal


Camera Lens: Canon EF-EOS R Mount Adapter allows EF/EF-S lens compatibility with EOS R cameras, providing adaptability without compromising functionality, speed, or quality.


Minimum Focal Length: 20 Millimeters


Real Angle Of View: 12 Degrees


Focal Length Description: 200 millimeters


Exposure Control: Program (P) mode


Self Timer: 10 seconds


Screen Size: 3.15 Inches


Display Type: LCD


Display Fixture Type: Fixed


Has Color Screen: Yes


Memory Slots Available: 1


Write Speed: Up to 8 fps or around 10-60 MB/s


Auto Focus Technology: Phase Detection


Focus Features: Phase Detection Autofocus


Focus Type: Auto Focus


Focus Mode: Single-Servo AF (AF-S)


Autofocus: Yes


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Apr 30

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Keep Your EF Lenses
I have several L series EF lenses that I use with a DSLR. Because of this adapter, I can continue to use them with my new R6 II. They mount securely and function perfectly with the mirrorless camera body. Autofocus and stabilization continue to work great.
Reviewed in the United States on April 19, 2025 by KDX
    • Best of the three Canon adaptor versions IMO! And cheapest!
Review Image by Destiny Marie Destiny Marie
I just upgraded to an R6ii from a 5Diii, and needed this adaptor to use my EF-L lenses with the new camera. I was nervous my lenses would have a loss in quality, but on the contrary they are actually performing better than ever. A lot of that has to do with the camera, because the R6ii is incredibly fast, but it's amazing to have an adaptor that gives no loss in quality and just flawlessly connects the EF lenses to the R system. I have had ZERO issues with connection, everything connects just like a lens connects straight to the camera. I have two L lenses, so I just keep the adaptor on the camera body and swap out the lenses to the adaptor as if they were connecting straight to the camera. The adaptor does add length, obviously, but the weight isn't that significant. If you're like me and have a heavy 70-200 lens, it works perfectly, but because of the extra length on an already long and heavy lens, I am careful when carrying because I don't want it just dangling on the adaptor/camera. The adaptor does connect tightly with no wiggle though, so it is safe if you do let the camera hang to your side with the lens, I'd just take precaution. Better to be safe than sorry. Honestly, I couldn't be happier. For the price, this is truly a great deal. $100 to make my expensive L lenses work with the new camera? Perfect! Definitely beats having to upgrade to even more expensive lenses right now. I did a lot of research on the three different Canon brand adaptors, and out of the three, this one was the best choice for me and was the cheapest as well which was a plus! If you're on the fence between the three different adaptors, I'd really recommend this one. Unless you really need an extra control ring (that's awkwardly placed), or drop in filters (that are very expensive), this is such a great price and works flawlessly! ... show more
Reviewed in the United States on July 24, 2023 by Destiny Marie Destiny Marie
    • Auto focus works great!
I was so happy to see that this worked perfectly with my Canon R6 II and my EF lenses. I used it with both my ef 70-200 F2.8 IS. And my ef 24-70 f2.8. The auto focus is not affected in any way. It works with the AI focus and all. The Image stabilization was also not affected. My only regret is no paying the extra to get the model with the drop in filter slot. That seems like a great option now that i know how well this product works. Highly recommend it if you have a R body and EF glass. ... show more
Reviewed in the United States on April 10, 2025 by Carlos
    • Canon R works great of course the name says it all it’s well built
This works really nice for my Canon R
Reviewed in the United States on March 29, 2025 by Robert littlepage
    • Works great
Does the job! I got the canon r6mkii recently but my lenses were ef but I didnt want to buy rf lenses yet so this does the job! Saves me a lot of money for now
Reviewed in the United States on February 15, 2025 by kristen
    • Quick Review of the EF-EOS R Mount Adapter.
The media could not be loaded. Loved how it was packaged and how well it attaches to my R50 Camera to my EFS 55-250mm lens. Works perfectly, was worried about it not being able to focus with the adapter but it actually worked the same as having a EOS lens. Definitely worth it, good weight and great photos. ... show more
Reviewed in the United States on January 6, 2025 by Chris
    • Essential for those moving from DSLR EF lenses to mirrorless cameras.
I was gifted a Canon R7 mirrorless camera and have a lot of EF lenses. This is a great adapter to allow me to use my pre-existing lenses on the new camera body. It fits perfectly, it is seamless and easy to use. Picture quality has been excellent and it is a good size that is not too bulky. For the price, it adds a great value for what I have already. Autofocus is quick and the weight is minimal. I am very pleased with its performance. ... show more
Reviewed in the United States on February 16, 2025 by Eagle Vision
    • Convenient
Works perfect as adapter for all DSLR lenses to use on new mirrorless body.
Reviewed in the United States on March 25, 2025 by Mandmib

Can't find a product?

Find it on Amazon first, then paste the link below.