---
product_id: 90391302
title: "VILTROX EF-M2 II Auto Focus MFT 0.71x Reducer Speed Booster Lens Adapter for Canon EF Mount Lens to Micro Four Thirds M4/3 Camera Panasonic GH4 GH5 GH5S GF6 GX85 GX7 Olympus E-M5 E-M10 E-PL5"
brand: "viltrox"
price: "R8288"
currency: ZAR
in_stock: true
reviews_count: 6
url: https://www.desertcart.co.za/products/90391302-viltrox-ef-m2-ii-auto-focus-mft-0-71x-reducer
store_origin: ZA
region: South Africa
---

# 0.71x focal reducer for brighter aperture Firmware upgrade via USB Auto Focus & Aperture Control VILTROX EF-M2 II Auto Focus MFT 0.71x Reducer Speed Booster Lens Adapter for Canon EF Mount Lens to Micro Four Thirds M4/3 Camera Panasonic GH4 GH5 GH5S GF6 GX85 GX7 Olympus E-M5 E-M10 E-PL5

**Brand:** viltrox
**Price:** R8288
**Availability:** ✅ In Stock

## Summary

> 📸 Unlock Pro-Level Lens Power with VILTROX EF-M2 II – Your Canon EF Lens’s Best Friend!

## Quick Answers

- **What is this?** VILTROX EF-M2 II Auto Focus MFT 0.71x Reducer Speed Booster Lens Adapter for Canon EF Mount Lens to Micro Four Thirds M4/3 Camera Panasonic GH4 GH5 GH5S GF6 GX85 GX7 Olympus E-M5 E-M10 E-PL5 by viltrox
- **How much does it cost?** R8288 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/90391302-viltrox-ef-m2-ii-auto-focus-mft-0-71x-reducer)

## Best For

- viltrox enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** Effortlessly pairs Canon EF lenses with Micro Four Thirds cameras like Panasonic GH5 and Olympus E-M10.
- • **Brighter Shots, Sharper Focus:** Boost your aperture by one stop for stunning background blur and crisp subject highlights.
- • **Future-Proof Firmware Updates:** Stay ahead with USB-upgradable firmware that unlocks new features and fixes bugs seamlessly.
- • **Smart Autofocus & Aperture Control:** Enjoy lightning-fast autofocus and full aperture adjustment directly from your M4/3 camera body.
- • **Real-Time EXIF & Image Stabilization:** Transmit EXIF data and benefit from built-in IS for rock-solid, precise shots every time.

## Overview

The VILTROX EF-M2 II is a cutting-edge speed booster adapter that transforms Canon EF lenses for Micro Four Thirds cameras, enhancing aperture by 0.71x for brighter, sharper images. It supports fast autofocus, aperture control, EXIF data transmission, and built-in image stabilization, all while offering firmware upgrades via USB to keep your gear future-ready.

## Description

EF-M2 II Auto Focus MFT 0.71x Reducer Speed Booster Lens Adapter for Canon EF Mount Lens to Micro Four Thirds M4/3 Camera Panasonic GH4 GH5 GH5S GF6 GX85 GX7 Olympus E-M5 E-M10 E-PL5

## Features

- 【Compatibility】VILTROX EF-M2 II Speed Booster is compatible with full-frame Canon EF lens to M4/3 (MFT/Micro Four Third) mount cameras.Panasonic:GH5S/GH5/GH4/GH1/GF9/GF8/GF5/GF1/GX85/GX8/GX7/GX1/G7/G1,etc;Olympus: E-M1 E-M1II E-M5 E-M5II E-M10 PEN-F E-P5 E-PL13,etc
- 【0.71x Focal Reducer Booster】EF-M2 II Speed Booster can increase one great of an aperture to blur the background and better highlight the theme.Built-in optical correction group,when using the adapter, the focus of the lens should be multiplied by 0.71, and then multiply this data by M4/3 conversion rate,is the lens’ actually equivalent focus.
- 【Auto Focus & Aperture Control】With copper electronic contacts,EF-M2 II will give you fast speed and smooth focusing experience.You can also adjust the aperture of EF lens by control M4/3 camera body.
- 【EXIF signal transmitting & IS Function】EF-M2 II can transmit the EXIF signals to your camera and display the current information on the screen( like Aperture,Shutter Speed, Exposure parameters, etc. ),and with Built-in IS function, making your focus much more precise and clear.
- 【Firmware Upgrade】Support firmware upgrade via USB port.Can perfect new functions of the lens mount adapter and fix bugs according to follow-up upgrades.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 11 x 10.5 x 6 centimetres |
| Package Weight | 0.31 Kilograms |
| Brand | VILTROX |
| Camera Lens | Compatible with Canon EF-mount lenses on Micro Four Thirds cameras |
| Lens Fixed Focal Length | 50 Millimetres |
| Max Focal Length | 85 Millimetres |
| Min Focal Length | 1 Millimetres |
| Part number | EF-M2 |
| Size | EF-M2 II |
| Warranty description | 1 year warranty |
| Water Resistance Level | Not Water Resistant |
| Zoom Type | Zoom Optique |
| Lens Design | Zoom |
| Focus type | Auto Focus |
| Aperture Modes | F2.8 |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** VILTROX
- **Focal length description:** 24-70 millimeters
- **Lens type:** Standard
- **Compatible mountings:** Micro Four Thirds
- **Camera lens description:** Compatible with Canon EF-mount lenses on Micro Four Thirds cameras
- **Maximum focal length:** 85 Millimetres
- **Minimum focal length:** 1 Millimetres
- **Lens design:** Zoom
- **Focus type:** Auto Focus
- **Lens-fixed focal length:** 50 Millimetres

## Images

![VILTROX EF-M2 II Auto Focus MFT 0.71x Reducer Speed Booster Lens Adapter for Canon EF Mount Lens to Micro Four Thirds M4/3 Camera Panasonic GH4 GH5 GH5S GF6 GX85 GX7 Olympus E-M5 E-M10 E-PL5 - Image 1](https://m.media-amazon.com/images/I/71ku4XwU3mL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best companion for your M6 Mark II
*by G***X on 11 January 2023*

I shoot primarily full frame on my Canon 5D Mark IV for my commercial photography, but carrying that around for street photography is just not very feasible.I wanted a small, full-frame, easy to use, quick to deploy camera. The obvious answer was the Lieca Q2, but I don't have that kind of cash to throw around so my next option was to buy an M6 Mark II, put this adapter on the front and use all of my full frame lenses at nearly no crop (well, 1.1 times crop, so nearly nothing) with the added bonus that it adds an extra stop of light, so a 24mm F2.8 becomes a 26.4mm F2 lens. Absolutely the perfect combination, now I can carry this camera around and use it with any of my full frame lenses, gaining a stop of light too!In the picture you can see it with a massive 24-35 F2 from Sigma. This lens is effectively a 26.4 to 38.5 F1.4 lens now and although it is very front heavy, it works really well.The adapter also has a tripod mount, you can balance these bigger lenses a bit better and relieve some of the stress on the camera mount when on a tripod.You can update the firmware of the adapter to the latest version which seems to have resolve some old issue where it would drain the battery of the camera even with the camera off, I've not had that issue at all.Lastly, image quality. I've not seen any real detriment to image quality with the addition of this adapter, the optics on it seem high quality enough. I do have the original Canon adapter (not a speedbooster) and pixel peeping didn't show any significant quality difference from a non-optic adapter to this one. The second picture (the one of the Omega watch) was shot using the M6 Mark II and this adapter with a Sigma 105mm F2.8 Macro Lens. You can be the judge on whether it resolves good quality or not :)It might seem a little expensive but in photography terms this is cheap, especially if you already have a line of full frame lenses (particularly primes you are used to shooting)

### ⭐⭐⭐⭐ Firmware-dependent performance, so YMMV.
*by D***N on 2 October 2022*

I'm using this to adapt Canon "L" glass to the Fujifilm X-H2. When I initially received the adapter I put the latest firmware on. However, when I started using the adapter with my lenses and the X-H2, is was a total disaster: the autofocus on all lenses just "hunted" and I frequently got a green focus lock indication, when the lens was blatantly out-of-focus; I had to switch to manual focus mode and use focus "peaking" to get anything in focus. Not a good start. However, a little research on't web indicated that things started to go t*ts up with this adapter at firmware V2.28 and that V2.26 was more stable. So, with little to lose (as I would have returned the adapter had things not improved) I downgraded the firmware to V2.26; and et voila everything worked on all my lenses. And the most amazing thing is that it worked just as well with video as stills; I was using a Sony A7 iii with an adapter and although stills were ok with auto focus video was a disaster. So, YMMV but whatever lenses and body combination you have, if you get this adapter, and things don't work properly, try V2.26 of the firmware before you send it back. I'm giving it four stars because all my L glass works as if it were native (or very near if not) and loses the extra star due to the hassle of having to research firmware that would enable correct functionality with my equipment. The image shows Rayman (looking a little dusty these days) shot with EF 24-70 f/2.8 USM L (MK1) and the Fujifilm X-H2 with this adapter.

### ⭐⭐⭐⭐⭐ I am very happy with the product and I can reuse my old lenses.
*by M***E on 6 May 2020*

I have a Olympus OMD EM10 III and also an old 35mm Canon camera.I forked out a substantial amount on lenses in the 2002 just to be overtaken by the digital revolution on cameras.Now finally I bought a lens adaptor to try and use my Canon lenses.It was important for me to be able to have auto focus and that the camera works with the lens without any major issues.It works for my EF 28-135mm just fine and even the EF 28-105 works despite not being on the list of supported lenses.I ran some test for clarity and as an amateur I can not spot any lens issues on the pictures.Yes auto-focus is sometimes a bit slow but again I did not expect the same performance as with Olympus lenses.I am very happy with the product and I can reuse my old lenses.TBH those big lenses are heavy and for a "day out" I'd probably use the original Olympus lenses so I don't have to carry the weight.For a bit more experimental picture taking I certainly would use the big Canon lenses.Best of both worlds really.Anyway the adaptor worked out of the box with my combination of camera and lenses and even though there is a firmware update available I did not install it on the grounds the "if it works why fix it"A bit on the expensive side but I don't regret my purchase.

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- Viltrox EF-M2 II Auto Focus 0.71x Reducer Speed Booster Lens Adapter for Canon EF Mount Lens to Micro Four Thirds M4/3 Camera Panasonic GH4 GH5 GH5S GF6 GX85 GX7 Olympus E-M5 E-M10 E-PL5
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-28*