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Canon Mount Adapter EF-EOS R

BH #CAMAEFRF • MFR #2971C002
Canon Mount Adapter EF-EOS R
Key Features
  • Canon EF/EF-S Lens to EOS R Camera
  • Maintains AF and Image Stabilization
  • Dust- and Water-Resistant
Extending the range of compatible lenses, the Canon Mount Adapter EF-EOS R is a lightweight, compact lens adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera. This simple adapter retains full autofocus and image stabilization capabilities and contains no optical components, thereby maintaining the original optical quality of the mounted lens. It is also dust- and water-resistant, making it suitable for use in harsh weather conditions.
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$99.00
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Canon 2971C002 Overview

Extending the range of compatible lenses, the Canon Mount Adapter EF-EOS R is a lightweight, compact lens adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera. This simple adapter retains full autofocus and image stabilization capabilities and contains no optical components, thereby maintaining the original optical quality of the mounted lens. It is also dust- and water-resistant, making it suitable for use in harsh weather conditions.

UPC: 013803304886

Canon 2971C002 Specs

Adapter
Camera MountCanon RF
Lens MountCanon EF, Canon EF/EF-S
Physical
Dimensionsø: 2.8 x H: 0.9" / ø: 71.2 x H: 24.0 mm
Weight3.88 oz / 110 g
Packaging Info
Package Weight0.57 lb
Box Dimensions (LxWxH)5.4 x 4.7 x 3.3"

Canon 2971C002 Reviews

Works Great

By John C.
Rated 4 out of 5
Date: 2023-01-31

Not sure why Canon says to remove it while changing lenses (rather than leave it on the camera body)?

Works for a targeted purpose

By Edward
Rated 3 out of 5
Date: 2023-01-26

If you get one be sure to factor in cropped sensor, EF-S, vs EF lenses as well as the fact that the compatibility list doesn't take this into account AND, most importantly, even if it does work, on some off brand, Sigma in my case, lenses as well as some older Canon lenses will not give you the frame rates the camera is capable of. Some are significantly slower. Now am into redoing my lens mix.

WORKS GREAT

By Dennis
Rated 5 out of 5
Date: 2023-01-24

I bought this for my telephoto lens off my old Cannon rebel to use on my R7...Works great and crystal clear pics and video.

easy to use

By Darcy
Rated 4 out of 5
Date: 2023-01-18

The fact I have some EF and EFS lens. This makes it easy for me to use with the canon eos R7. I like the metal construction.

The Go To adapter

By Jay
Rated 5 out of 5
Date: 2023-01-11

Slowly converting from dslr to mirrorless and not willing to give up any of my EF lenses so needed to get an adapter. Really wanted to use either the CP or ND adapter, but not willing to spend that much as I use screw on filters just fine. Zero connectivity issues with any of my Canon L glass, or Sigma Art series lenses.

Simple but effective adapter

By Dalton
Rated 5 out of 5
Date: 2023-01-10

This adapter allows you to mount Canon EF series lenses to the newer Canon RF series cameras. It's stable, well built and easy to use. Must have if you still use the older EF lenses but have a nice new mirrorless camera or something like the Red Komodo.

Great

By Nesta
Rated 5 out of 5
Date: 2023-01-30

Being able to use my old EF lenses with RF camera body, thank you !! Money saved.

Excellent adapter

By Miguel
Rated 5 out of 5
Date: 2023-01-30

Adapter works well with all my efCanon lenses. Sharpness is excellent, is light And well built. Auto focus works fine

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What is the difference between this mount ...

What is the difference between this mount converter and the Control Ring Mount Adapter?
Asked by: Katie
One has the control ring which is useful but not necessary, and one is without.
Answered by: Kenneth
Date published: 2021-10-10

Is there any rotational play/wiggle/slack with EF ...

Is there any rotational play/wiggle/slack with EF lenses with this adapter, or is the adapter tight and doesn't have any play?
Asked by: Thatcher
ABSOLUTLEY NOT! On multiple lenses from 16-35mm ef to my 400mm f2.8. I bought 2 since I have a lot of L series Ef lenses! Image quality up to 24-36 enlargement does not seem affected.
Answered by: Gerold
Date published: 2022-04-23

I have a EF mount. Can this be used on that to ...

I have a EF mount. Can this be used on that to use my efs lenses?
Asked by: Matt
Yes. EFS lenses mount just fine and work great on the EOS R.
Answered by: Dale
Date published: 2020-08-07

Will a Canon E mount lens work with this?

Will a Canon E mount lens work with this?
Asked by: KEITH
This adapter is meant to be used with Canon "EF" and "EF-S" mount lenses, including third party lenses (Sigma, Tamron etc.). FYI - "E" mount is associated with Sony's mirrorless l cameras.
Answered by: Ranjit
Date published: 2022-09-11

Will this Adapter be compatible with the R5 R6 & ...

Will this Adapter be compatible with the R5 R6 & EF L lenses?
Asked by: Anonymous
Yes, I use it on an EOS and it works great. Canon also makes additional adapters for EF lease on the EOS R cameras, one that adds a control dial and one that allows for drop-in filters.
Answered by: Kevin
Date published: 2020-08-21

Does the adapter EF-EOS R work on R7?

Does the adapter EF-EOS R work on R7?
Asked by: Robert
Yes Canon Mount Adapter EF-EOS R is compatible with the Canon R7
Answered by: Daniel
Date published: 2022-10-26

Would this be a good choice to use on a Sigma ...

Would this be a good choice to use on a Sigma 18-33 lens or my canon EF-S lenses on a Canon R7?
Asked by: Ryan
Yes, a Sigma 18-35mm f/1.8 Lens with a Canon EF mount can be adapted with the Canon EF-EOSR R adapter to the EOS R7. You can also use this with EF-S lenses.
Answered by: Kirk
Date published: 2023-01-25

will this work with the R3 ?

will this work with the R3 ?
Asked by: Sherman
Yes
Answered by: Erich
Date published: 2021-08-04
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