---
product_id: 476481265
title: "Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter with Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 R7 R10 C70"
brand: "meike"
price: "$222.91"
currency: USD
in_stock: true
reviews_count: 13
category: "Meike"
url: https://www.desertcart.us/products/476481265-meike-mk-eftr-b-for-canon-ef-ef-s-lens
store_origin: US
region: United States of America
---

# Enhanced dustproof & waterproof sealing Seamless EF/EF-S to RF lens compatibility Customizable control ring for instant manual adjustments Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter with Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 R7 R10 C70

**Brand:** meike
**Price:** $222.91
**Availability:** ✅ In Stock

## Summary

> 🎥 Adapt. Control. Conquer. Elevate your Canon RF setup with Meike’s ultimate lens adapter.

## Quick Answers

- **What is this?** Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter with Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 R7 R10 C70 by meike
- **How much does it cost?** $222.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/476481265-meike-mk-eftr-b-for-canon-ef-ef-s-lens)

## Best For

- meike enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Rugged metal mounts combined with a bright red weather-sealed gasket ensure your gear stays protected in any environment.
- • **Future-Proof Firmware:** USB-C port enables easy firmware updates, promising ongoing compatibility and feature enhancements.
- • **Universal Lens Freedom:** Unlock your Canon RF camera’s full potential by effortlessly adapting EF/EF-S lenses with flawless auto-focus and image stabilization.
- • **Cost-Effective Excellence:** Get premium Canon adapter performance at less than half the price—no optical compromises, just pure signal transmission.
- • **Precision at Your Fingertips:** Assign shutter speed, aperture, ISO, or exposure compensation to the intuitive control ring—perfect for on-the-fly creative control.

## Overview

The Meike MK-EFTR-B adapter bridges Canon EF/EF-S lenses to RF mount cameras like EOS R series, delivering full auto-focus, image stabilization, and EXIF data transmission. Featuring a customizable control ring and robust metal construction with dust and water resistance, it offers professional-grade performance and durability at a fraction of Canon’s price. Firmware updates via USB-C ensure it stays future-ready.

## Description

Free delivery and returns on eligible orders. Buy Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter with Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 R7 R10 C70 at desertcart UK.

Review: Works, but check my provisos... - I have a Canon RP- the main dial is faulty, I use Av mode mostly, and this adaptor restores the physical function without needing a repair. (you could also use the touch screen of course). It worked directly without having to assign the function in the camera menu. My proviso is that I saw one YouTuber comment that eye tracking was not supported, which might be an issue if you take lots of portraits. The RP only has face tracking, but this works ok, I tested it, and other focus modes and functions are supported. The good news is that there is a usb c firmware socket included, so I imagine this issue could be solved in a future firmware update. Another nice touch is the bright red weather sealing gasket, and it is less than half the price of the Canon equivalent adaptor. UPDATE!!! My apologies! I did not have eye detection enabled on my RP- I have retested and it seems to work fine. An older adaptor without the firmware update may be a problem, solution as above- just something to bear in mind...
Review: Works flawlessly. No need to get the expensive Canon version. - Works flawlessly. No reason to buy the overpriced Canon version. Note that it has no glass in it, so there is no need to worry about optical quality. It is a spacer, as the sensor in mirrorless Canon cameras is further forward, as there is no need to leave space for a mirror. It does pass through electronic signals between camera and lens, which it does well. For focus stacking the comms are more complicated, and it does this too.

## Features

- 【Compatibility】The adapter is designed to allow EF / EF-S lenses to be used with EOS R RP R5 R6 camera.
- 【Control Ring】Can be assigned the functions that are commonly used with cameras, such as shutter speed, aperture setting, ISO sensitivity and exposure compensation.
- 【Functions】It enables Auto Focusing, Image stabilizing, EXIF signal transmission and other functions of the lens.
- 【Metal construction】 Metal material on front and rear mounts can provide rugged flexibility
- 【Dustproof and Waterproof 】The rear mount on the adapter with a rubber ring to improve dustproof and waterproof performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QYCV8F8 |
| Aperture Modes | F2.8 |
| Best Sellers Rank | 38,626 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 396 in Camera Lenses |
| Brand | Meike |
| Camera Lens | Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter With Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 |
| Customer Reviews | 4.3 4.3 out of 5 stars (203) |
| Date First Available | 22 Jan. 2022 |
| Focus type | Auto Focus |
| Guaranteed software updates until | unknown |
| Item model number | MK-EFTR-B |
| Lens Design | Prime |
| Lens Fixed Focal Length | 85 Millimetres |
| Min Focal Length | 1 Millimeters |
| Package Dimensions L x W x H | 8.9 x 8.8 x 6.6 centimetres |
| Package Weight | 0.16 Kilograms |
| Part number | MK-EFTR-B |
| Product Dimensions L x W x H | 24 x 74 x 74 millimetres |
| Warranty description | 1 year manufacturer |
| Water Resistance Level | Water Resistant |
| Zoom Type | Prime |

## Product Details

- **Brand:** Meike
- **Compatible mountings:** Canon EF
- **Focal length description:** 1 millimeters
- **Focus type:** Auto Focus
- **Lens coating description:** Super Integrated Coating
- **Lens design:** Prime
- **Lens type:** Standard
- **Lens-fixed focal length:** 85 Millimetres
- **Minimum focal length:** 1 Millimeters

## Images

![Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter with Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 R7 R10 C70 - Image 1](https://m.media-amazon.com/images/I/61nogFFKoFL.jpg)

## Questions & Answers

**Q: I found firmware but i dont know how to upload it to the adapter.when i connect it to pc via usb nothing happens. anybody knows how to do it?**
A: I have the EXACT same question.  Gotta love no instructions.

**Q: Where are the firmware files found?**
A: Hello,
Please click "Download and support" at the bottom of HongKong Meike official website to find the firmware. If you can't find it, please contact the seller.

**Q: Does control ring works on Sigma lenses on canon rp ?**
A: It should. I worked with a Sigma lens on my R7 perfectly we'll.

**Q: How to update via usb?  connect and then what? there are no instructions or application to install**
A: It is not easy, you have to get the program from Meike’s website and it is not in English so you have to just click through and pray it works. I only did it to stop the battery drain problem.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works, but check my provisos...
*by J***N on 31 December 2025*

I have a Canon RP- the main dial is faulty, I use Av mode mostly, and this adaptor restores the physical function without needing a repair. (you could also use the touch screen of course). It worked directly without having to assign the function in the camera menu. My proviso is that I saw one YouTuber comment that eye tracking was not supported, which might be an issue if you take lots of portraits. The RP only has face tracking, but this works ok, I tested it, and other focus modes and functions are supported. The good news is that there is a usb c firmware socket included, so I imagine this issue could be solved in a future firmware update. Another nice touch is the bright red weather sealing gasket, and it is less than half the price of the Canon equivalent adaptor. UPDATE!!! My apologies! I did not have eye detection enabled on my RP- I have retested and it seems to work fine. An older adaptor without the firmware update may be a problem, solution as above- just something to bear in mind...

### ⭐⭐⭐⭐⭐ Works flawlessly. No need to get the expensive Canon version.
*by A***Y on 9 February 2025*

Works flawlessly. No reason to buy the overpriced Canon version. Note that it has no glass in it, so there is no need to worry about optical quality. It is a spacer, as the sensor in mirrorless Canon cameras is further forward, as there is no need to leave space for a mirror. It does pass through electronic signals between camera and lens, which it does well. For focus stacking the comms are more complicated, and it does this too.

### ⭐⭐⭐⭐ More than decent
*by K***R on 9 January 2026*

Really solid adaptor. Has only ever thrown up the occasional error message but quickly rectified with a wipe down and reconnection. Has no impact on AF or quality, though the control ring is very useful as I use it for Ev on older EF lenses.

## Frequently Bought Together

- Meike MK-EFTR-B for Canon EF/EF-S Lens to RF Mount Cameras Auto-Focus Lens Adapter with Control Ring for Canon EF/EF-S Lenses to Canon EOS R RP R5 R6 R7 R10 C70
- Meike 85mm F1.8 Full Frame Auto Focus Medium-Telephoto Portrait Lens Compatible with Canon EOS EF Mount Digital SLR Cameras 5D Mark IV 6D Mark II
- SanDisk 128GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXD-128G-GN4IN

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/476481265-meike-mk-eftr-b-for-canon-ef-ef-s-lens](https://www.desertcart.us/products/476481265-meike-mk-eftr-b-for-canon-ef-ef-s-lens)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*