---
product_id: 93966026
title: "Canon 2971C005 Bayonet adapter EF-EOS R. , black"
brand: "canon"
price: "Bs.3172"
currency: BOB
in_stock: true
reviews_count: 13
category: "Canon"
url: https://www.desertcart.bo/products/93966026-canon-2971c005-bayonet-adapter-ef-eos-r-black
store_origin: BO
region: Bolivia
---

# Dust & splash resistant for rugged shoots Seamless EF/EF-S to RF lens compatibility Lightweight 110g for balanced handling Canon 2971C005 Bayonet adapter EF-EOS R. , black

**Brand:** canon
**Price:** Bs.3172
**Availability:** ✅ In Stock

## Summary

> 🔗 Unlock your lens legacy with Canon’s ultimate EF-EOS R adapter!

## Quick Answers

- **What is this?** Canon 2971C005 Bayonet adapter EF-EOS R. , black by canon
- **How much does it cost?** Bs.3172 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/93966026-canon-2971c005-bayonet-adapter-ef-eos-r-black)

## Best For

- canon enthusiasts

## Why This Product

- Trusted canon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cost-Saving Upgrade:** Keep your existing lenses and avoid costly replacements while upgrading to EOS R.
- • **Compact & Lightweight:** Adds minimal bulk and weight, maintaining your camera’s ergonomic balance.
- • **Universal Lens Freedom:** Use your entire EF and EF-S lens collection on EOS R bodies without compromise.
- • **Rock-Solid Build Quality:** Premium Canon craftsmanship ensures a secure, wobble-free connection every time.
- • **Weather-Resistant Design:** Shoot confidently in challenging conditions with dust and splash protection.

## Overview

The Canon 2971C005 Bayonet Adapter EF-EOS R is a precision-engineered accessory that enables full compatibility of Canon EF and EF-S lenses with EOS R mirrorless cameras. Weighing just 110 grams and featuring dust and splash resistance, it offers professional-grade durability and seamless integration, preserving image quality and expanding creative possibilities without the need to replace your existing lens lineup.

## Description

Product Description The adapters of the EOS R system allow full compatibility with the entire range of Canon EF and EF-S lenses. So owners of a camera of the Canon EOS R system can also fully integrate another EOS camera into their existing lens lineup as well. Box Contains Box contents: bayonet adapter EF-EOS R; camera housing cover R-F-3; lens back cover RF; case; user manual (English language not guaranteed)

Review: Brilliant quality - The quality is really good don't mind paying more for quality like this solid works good no issues yet helps make My r50 look bigger and helps balance it up with it being a small camera,yes worth the extra dosh you'll not b disappointed if you get one good stuff thanks cannon
Review: Works a treat - Hello...i've had this adapter for a while now and it works a treat with my EF lenses, primes and zoomy ones. Image quality is spot on Theres no wobble and everything attaches solidly. As far as i can say its weather sealed, was out in some torrential rain in the North East and there were no misfunctions. To those who say it makes the lens stick out more (of course it does its an adapter after all) but not in any way thats going to effect photographs or moving about, no way. Its saved me sooo much money not having to sell my existing EF lenses to buy replacements for my RF camera. Good Stuff....Bye.

## Features

- Use existing lenses with EF and EF-S bayonet with a Canon EF-EOS R camera.
- Built for professional use.
- Box contents: bayonet adapter EF-EOS R, camera housing cover R-F-3, lens back cover RF, case, user manual (English language not assuranced).
- Model number: 2971C005

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H5SL6W3 |
| Aperture Modes | f1.2-32 |
| Batteries | 1 AA batteries required. |
| Brand | Canon |
| Camera Lens | The Canon EF-EOS R bayonet adapter allows the use of EF and EF-S lenses on EOS R cameras. It fits any camera with RF bayonet and is dust and splash proof. EF-S lenses can also be connected, with the camera then generating a picture section. The adapter is compatible with the EOS R3, EOS R5, EOS R6, EOS R and EOS RP. |
| Colour | black |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,293) |
| Date First Available | 7 Sept. 2018 |
| Focus type | Manual Focus |
| Guaranteed software updates until | unknown |
| Included components | 1 |
| Item Weight | 110 Grams |
| Item model number | 2971C005 |
| Lens Design | Prime |
| Model year | 2018 |
| Package Dimensions L x W x H | 12.9 x 11.8 x 8.2 centimetres |
| Package Weight | 0.23 Kilograms |
| Part number | EF-EOSR |
| Photo Filter Effect Type | Ultraviolet |
| Photo Filter Thread Size | 58 |
| Plug profile | Canon |
| Product Dimensions L x W x H | 13 x 12 x 8 centimetres |
| Style | Adapter |
| Water Resistance Level | Water Resistant |
| Zoom Type | Prime |

## Product Details

- **Brand:** Canon
- **Compatible mountings:** Canon EF
- **Focal length description:** Adapter, pas de longueur focale
- **Focus type:** Manual Focus
- **Image stabilisation:** no image stabilization
- **Lens design:** Prime
- **Lens type:** Lens accessory
- **Model name:** Canon EF - EOS R
- **Zoom ratio:** 1

## Images

![Canon 2971C005 Bayonet adapter EF-EOS R. , black - Image 1](https://m.media-amazon.com/images/I/61I62Y0BMoL.jpg)

## Questions & Answers

**Q: Will this adapter be compatible with my 100-400ef mk11 on my r8**
A: I have used it with 2 canon ef lenses works great but  with my tamron and  sigma it leaves a vignette so I would say it will work fine with your 100-400.

**Q: Is this the adapter that comes with the canon r and rp cameras when bought anew?**
A: It depends which one (on this multi-option listing) you and/or the Question responder are looking at. 

"Adapter" - sometimes but not always - bundled with the EOS R and EOS RP. 

"Adapter with lens control ring" - never seen this as part of a ready-made bundle. Seems to be popular for the extra functionality. 

The other two allow you to use drop-in filters. Again, never seen either as a ready-made bundle with the R or RP.

Harry Potter and the curse of the multi-option listing.

**Q: Will this work with lenses from my Canon 7D please ?**
A: The Canon 7D uses EF lenses, so any lens you have for the 7D can be mounted to RF moj t with this adapter

**Q: Is this adapter weather sealed?**
A: According to Canon, yes they are. Also dust sealed when connected.  The Canon version us beautifully flat and forms a perfect seal. I have 3  R adapters for use with EF lenses on the R . I believe they also fit the smaller RP too.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant quality
*by R***E on 3 October 2025*

The quality is really good don't mind paying more for quality like this solid works good no issues yet helps make My r50 look bigger and helps balance it up with it being a small camera,yes worth the extra dosh you'll not b disappointed if you get one good stuff thanks cannon

### ⭐⭐⭐⭐⭐ Works a treat
*by N***S on 3 October 2024*

Hello...i've had this adapter for a while now and it works a treat with my EF lenses, primes and zoomy ones. Image quality is spot on Theres no wobble and everything attaches solidly. As far as i can say its weather sealed, was out in some torrential rain in the North East and there were no misfunctions. To those who say it makes the lens stick out more (of course it does its an adapter after all) but not in any way thats going to effect photographs or moving about, no way. Its saved me sooo much money not having to sell my existing EF lenses to buy replacements for my RF camera. Good Stuff....Bye.

### ⭐⭐⭐⭐⭐ Works well
*by S***C on 18 January 2026*

Enables the use of Canon EF-S lenses with an RF camera lens mount, without affecting functionality. Also works with my Sigma telephoto lens, too. Happy with purchase

## Frequently Bought Together

- Canon 2971C005 Bayonet adapter EF-EOS R. , black
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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-02*