---
product_id: 78868792
title: "Mount Adapter EF-EOS R, Black"
brand: "canon"
price: "1167 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Canon"
url: https://www.desertcart.pl/products/78868792-mount-adapter-ef-eos-r-black
store_origin: PL
region: Poland
---

# Seamless EF to RF lens compatibility Metal mounts for rock-solid connection Dust & water-resistant rugged design Mount Adapter EF-EOS R, Black

**Brand:** canon
**Price:** 1167 zł
**Availability:** ✅ In Stock

## Summary

> 🔗 Unlock your lens legacy with flawless EOS R power!

## Quick Answers

- **What is this?** Mount Adapter EF-EOS R, Black by canon
- **How much does it cost?** 1167 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/78868792-mount-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

- • **Compact Yet Powerful:** Adds minimal length and weight, preserving your camera’s sleek mirrorless form factor.
- • **Rock-Solid Metal Mounts:** Durable metal construction on both ends ensures zero wiggle and secure lens attachment.
- • **Built to Brave the Elements:** Dust- and water-resistant exterior keeps your gear protected in any shoot environment.
- • **Pro-Grade Autofocus Compatibility:** Maintains full autofocus and aperture control for professional-grade shooting.
- • **Effortless Lens Legacy Integration:** Use your prized EF/EF-S lenses flawlessly on EOS R series without quality loss.

## Overview

The Canon Mount Adapter EF-EOS R is a precision-engineered accessory that enables seamless use of EF and EF-S lenses on Canon’s EOS R mirrorless cameras. Featuring dust- and water-resistant construction and robust metal mounts, it guarantees a secure, high-quality connection without compromising autofocus or image quality. Perfect for professionals upgrading to mirrorless while preserving their existing lens investments.

## Description

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

Review: Best of the three Canon adaptor versions IMO! And cheapest! - 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!
Review: Fits like a glove! - Works great to transfer my EF lens onto my mirrorless camera. It has contacts so my lens motors work for AF.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H4CR6Y9 |
| Aperture modes | f/22 |
| Are Batteries Included | No |
| Aspect Ratio | 3:2 |
| Auto Focus Technology | Fixed Focus |
| Autofocus | Yes |
| Best Sellers Rank | #1 in Camera Lens Adapters & Converters |
| Brand | Canon |
| Built-In Media | CANON MOUNT ADAPTER EF-EOS R, Camera Cover R-F-3, LENS DUST CAP RF, Soft Case |
| Camera Flash | no flash |
| Camera Lens | Canon EF-EOS R Mount Adapter |
| Color | Black |
| Compatible Devices | Canon EF lenses |
| Compatible Mountings | Canon RF |
| Connectivity Technology | USB |
| Continuous Shooting | 60 FPS |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,574) |
| Digital-Still | Yes |
| Display Fixture Type | Fixed |
| Display Type | LCD |
| Effective Still Resolution | 30.3 MP |
| Exposure Control | Program (P) mode |
| File Format | RAW |
| Flash Modes | Various flash modes supported |
| Flash Sync Speed | 1/200 |
| Focal Length Description | teleconverter |
| Focus Features | Phase Detection Autofocus |
| Focus Mode | Single-Servo AF (AF-S) |
| Focus Type | Fixed Focus |
| Form Factor | Mirrorless |
| Global Trade Identification Number | 00013803304886 |
| Has Color Screen | Yes |
| Image Capture Type | Video |
| Image stabilization | Digital |
| Item Type Name | Canon cameras us ef-eos r new mount adapter, black, full-size (2971c002). |
| Item Weight | 0.24 Pounds |
| JPEG Quality Level | Normal |
| Lens Type | Teleconverter |
| Manufacturer | Canon |
| Manufacturer Part Number | 2971C002 |
| Maximum Aperture | 20 Millimeters |
| Maximum Focal Length | 105 Millimeters |
| Maximum Shutter Speed | 1 seconds |
| Memory Slots Available | 1 |
| Minimum Focal Length | 20 Millimeters |
| Minimum Shutter Speed | 1 Seconds |
| Model Name | CANON MOUNT ADAPTER EF-EOS R |
| Model Number | 2971C002 |
| Model Series | EF-EOS R |
| Movie Mode | Yes |
| Night vision | No |
| Photo Sensor Resolution | 30.3 MP |
| Photo Sensor Size | Full Frame (35mm) |
| Real Angle Of View | 12 Degrees |
| Recording Capacity | 1 Minutes |
| Remote Included | No |
| Screen Size | 3.15 Inches |
| Self Timer | 10 Seconds |
| Sensor Type | Not Specified |
| Shooting Modes | Automatic |
| Skill Level | Professional |
| Special Feature | Lightweight |
| Specific Uses For Product | Videography |
| Supported Image Format | RAW |
| Total Still Resolution | 30 MP |
| Total USB Ports | 1 |
| Total Video Out Ports | 1 |
| UPC | 013803304886 |
| Unit Count | 1.0 Count |
| Video Capture Format | MP4 |
| Video Resolution | 1080p |
| Viewfinder | Electronic |
| Warranty Description | 1 Year Manufacturer Limited Warranty |
| Wireless Technology | Wi-Fi |
| Write Speed | Up to 8 fps or around 10-60 MB/s |
| Zoom | Optical Zoom |

## Product Details

- **Aspect Ratio:** 3:2
- **Brand:** Canon
- **Compatible Mountings:** Canon RF
- **Image Stabilization:** Digital
- **Maximum Aperture:** 20 Millimeters
- **Maximum Focal Length:** 105 Millimeters
- **Maximum Webcam Image Resolution:** 30.3 MP
- **Model Name:** CANON MOUNT ADAPTER EF-EOS R
- **Photo Sensor Technology:** Not Specified
- **Supported File Format:** RAW

## Images

![Mount Adapter EF-EOS R, Black - Image 1](https://m.media-amazon.com/images/I/61VTru2GS0L.jpg)

## Questions & Answers

**Q: What, exactly, is the difference between the $99 vers and the $199 vers?**
A: the one with ring allows you to assign another function to the ring.  e.g. exposure compensation.  Giving you extra flexibility.

**Q: Does this adapter affect autofocus of the R series cameras under challenging conditions--like a bird in flight against busy background?**
A: The adapter has no glass, its main function is to set the proper distance between the sensor and the EF lens.

**Q: will this adapter work with  sigma 18-35mm f1.8 art dc hsm lens for canon and will work with sigma 30mm f1.4 contemporary dc dn lens for sony e ?**
A: This adapter should work with the sigma 18-35mm for Canon EF mount but the image won't cover all of a full-frame sensor because DC lenses are made for smaller APS-C sized sensors. You can enable crop mode in your EOS R camera to only use part of the sensor.

No, this adapter is not for Sony mount lenses.

**Q: Add doesn't mention rf...it just says r-type which is confusing. that's not the standard term. so this product allows me to attach ef to my r5?**
A: Yes this lets you mount EF lenses to R Series Cameras like the R5.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best of the three Canon adaptor versions IMO! And cheapest!
*by D***E on July 24, 2023*

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!

### ⭐⭐⭐⭐⭐ Fits like a glove!
*by J***S on January 10, 2026*

Works great to transfer my EF lens onto my mirrorless camera. It has contacts so my lens motors work for AF.

### ⭐⭐⭐⭐⭐ Perfect Solution for My EF Lens on R7
*by J***Z on July 28, 2025*

I recently bought a lens for my Canon R7 without realizing it wasn’t compatible — rookie mistake. Thankfully, this Canon EF-EOS R adapter saved the day. Once I attached it, the lens worked flawlessly, with fast autofocus and full functionality. The build quality is solid, and it feels like a native part of the camera once mounted. No lag, no issues, just smooth performance. If you’re transitioning to the R series and want to keep using your EF lenses, this is a must-have. 10/10 — highly recommended!

## Frequently Bought Together

- Canon Mount Adapter EF-EOS R
- Canon EOS R6 Mark II Mirrorless Camera (Body Only), Full-Frame Camera, 24.2 Megapixel CMOS Sensor, Photo and Video Capabilities, Black
- SanDisk 128GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXD-128G-GN4IN

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---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-23*