Meike

Meike MK-EFTR-B Canon EF to RF Lens Adapter Control Ring

4.2 (149 reviews)

Unlock the Potential of Your Canon EOS R with the Meike MK-EFTR-B Lens AdapterThe Meike MK-EFTR-B Lens Adapter allows you to use your Canon EF/EF-S lenses with Canon EOS R mount cameras. Featuring a built-in control ring, this adapter offers customizable functions and enables auto-focusing, image...

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Unlock the Potential of Your Canon EOS R with the Meike MK-EFTR-B Lens Adapter

The Meike MK-EFTR-B Lens Adapter allows you to use your Canon EF/EF-S lenses with Canon EOS R mount cameras. Featuring a built-in control ring, this adapter offers customizable functions and enables auto-focusing, image stabilization, and EXIF signal transmission. Its durable construction and dust-proof design make it a reliable tool for photographers and videographers.

  • Compatibility: Canon EF/EF-S Lenses to Canon EOS R Mount Cameras
  • Control Ring: Customizable functions for shutter speed, aperture, ISO, and exposure compensation
  • Functions: Auto Focusing, Image Stabilizing, EXIF Signal Transmission
  • Construction: Metal Front and Rear Mounts
  • Features: Dust-proof and Water-proof Design

Key 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.

Specifications

Model Number
MK-EFTR-B
Lens Compatibility
Canon EF / EF-S lenses
Camera Compatibility
Canon EOS R, RP, R5, R6 cameras
Features
Control Ring, Auto Focusing, Image Stabilizing, EXIF signal transmission
Construction Material
Metal (front and rear mounts)
Environmental Protection
Dustproof and Waterproof (rear mount with rubber ring)

Pros & Cons

👍 Pros

  • Allows Canon EF/EF-S lenses to be used with Canon EOS R, RP, R5, and R6 mirrorless cameras, expanding lens compatibility.
  • Features a customizable control ring that can be assigned common camera functions like shutter speed, aperture, ISO, and exposure compensation.
  • Supports important lens functions such as autofocus, image stabilization, and EXIF signal transmission for seamless operation.
  • Constructed with metal on both the front and rear mounts, providing rugged flexibility and enhanced durability.
  • Includes a rubber ring on the rear mount to improve dustproof and waterproof performance, protecting the camera and lens connection.

👎 Cons

  • The adapter is specifically designed for Canon EF/EF-S lenses to EOS R-series cameras, limiting its use to this particular system.
  • While it enables various functions, it is an additional piece of equipment, potentially adding weight and length to the lens setup.
  • The customizable control ring requires user setup to assign desired functions, which might involve an initial learning curve.
  • Its dustproof and waterproof performance is listed as "improved," suggesting it may not be fully impervious to extreme conditions.
  • Users are required to purchase this adapter separately to utilize their existing EF/EF-S lenses on newer RF-mount bodies, representing an extra cost.

Frequently Asked Questions

This adapter is designed for using Canon EF / EF-S lenses on Canon EOS R, RP, R5, and R6 mirrorless cameras.
Yes, the adapter enables Auto Focusing, Image stabilizing, and EXIF signal transmission for compatible lenses.
Yes, the control ring can be assigned commonly used camera functions such as shutter speed, aperture setting, ISO sensitivity, and exposure compensation.
The adapter features metal construction on both its front and rear mounts, providing rugged flexibility.
The rear mount of the adapter includes a rubber ring to enhance its dustproof and waterproof performance, offering improved protection.