---
product_id: 94982591
title: "VILTROX EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS-M M2 M3 M5 M6 M10 M50 M100"
brand: "viltrox"
price: "VT83321"
currency: VUV
in_stock: true
reviews_count: 6
url: https://www.desertcart.vu/products/94982591-viltrox-ef-eos-m2-auto-focus-lens-adapter-0-71x
store_origin: VU
region: Vanuatu
---

# Auto Focus 0.71x Reducer Firmware Updates VILTROX EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS-M M2 M3 M5 M6 M10 M50 M100

**Brand:** viltrox
**Price:** VT83321
**Availability:** ✅ In Stock

## Summary

> 📸 Elevate Your Photography Game with VILTROX!

## Quick Answers

- **What is this?** VILTROX EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS-M M2 M3 M5 M6 M10 M50 M100 by viltrox
- **How much does it cost?** VT83321 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/94982591-viltrox-ef-eos-m2-auto-focus-lens-adapter-0-71x)

## 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

- • **Bokeh Bliss:** Increase your aperture by 1 stop for stunning background blur that makes your subject pop.
- • **Durable Design:** Crafted from precision all-metal construction, this adapter is built to last and designed for stability.
- • **Seamless Autofocus:** Experience fast and smooth autofocus, capturing fleeting moments effortlessly.
- • **Smart Connectivity:** Enjoy enhanced EXIF data transmission and built-in IS for precise focusing.
- • **Transform Your Lens Game:** Unlock the full potential of your Canon EF lenses with a 0.71x focal length reducer, expanding your shooting range like never before.

## Overview

The VILTROX EF-EOS M2 Auto Focus Lens Adapter is a high-performance accessory that allows Canon EF lenses to be used with Canon EF-M mirrorless cameras. Featuring a 0.71x focal length reducer, it enhances aperture by one stop, supports seamless autofocus, and includes built-in image stabilization. With a robust all-metal design and firmware update support, this adapter is perfect for photographers looking to maximize their lens capabilities.

## Description

EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS-M M2 M3 M5 M6 M10 M50 M100

## Features

- 【Compatibility】VILTROX EF-EOS M2 Speed Booster compatible with Canon EF Lens to Cano EF-M Mount mirrorless camera EOS M M2 M3 M5 M6 M6II M10 M50 M50II M100 M200.
- 【0.71x Focal Length Reducer 】Built-in optical correction group, when using this adapter, the focal length of lens should be shortened x0.71 based on the original,that is equivalent focal length = focal length x 0.71x camera conversion rate,which make the effective focal length smaller and the shooting range wider.
- 【Aperture increased by 1 stop】EF-EOS M2 Speed Booster can increase one stop aperture to blur the background and better highlight the theme.
- 【Auto Focus & Aperture Control】EF-EOS M2 Speed Booster with steady, fast and smooth autofocus, let you easy to shoot in the face of fleeting beauty. You can also adjust the aperture of EF lens by control EOS M series camera body.
- 【EXIF signal transmitting & IS Function】Cooper gold-plated contacts with great conductivity enhance the EXIF info. Transmission between lens and camera body. Built-in IS function, making your focus much more precise and clear.
- 【Support firmware update】Through continuous software updates, VILTROX will help users get better shooting experience, fix product bugs and constantly adapt to the new EF lens, provide more lens and camera combinations.
- 【Metal Structure】Precision all-metal construction with chrome plated brass mounts,durable and stable.Designed with 1/4 screws at the bottom, which can be mounted on tripod or other support platform.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 10.9 x 9.9 x 6.1 centimetres |
| Package Weight | 0.32 Kilograms |
| Brand | VILTROX |
| Camera Lens | The Viltrox EF-EOS M2 mount adapter is a robust and stable accessory, designed to allow Canon EF-mount series lenses to be used with Canon EF-M mirrorless cameras. It features a 0.71x focal reducer booster, which helps enlarge one level aperture. The adapter supports auto focus function and electronic aperture control, and has a built-in IS stabilization function for precise and clear focusing. It is made of aluminum alloy, features gold-plated contact pins for great conductivity, and has a 1/4 bottom tripod base plate for added stability. The adapter is compatible with Canon EOS EF Mount lenses and Canon EOS M series Mirrorless Cameras, and has a focus mode of auto focus and a focal length multiplier of 0.71x. |
| Part number | EF-EOS M2 |
| Size | EF-EOS M2 |
| Lens Design | Prime |
| Focus type | Auto Focus |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** VILTROX
- **Lens type:** Teleconverter
- **Compatible mountings:** Canon EF
- **Camera lens description:** (function(f) {var _np=(window.P._namespace("DetailPageProductOverviewTemplatesJava"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) {
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}));  The Viltrox EF-EOS M2 mount adapter is a robust and stable accessory, designed to allow Canon EF-mount series lenses to be used with Canon EF-M mirrorless cameras. It features a 0.71x focal reducer booster, which helps enlarge one level aperture. The adapter supports auto focus function and electronic aperture control, and has a built-in IS stabilization function for precise and clear focusing. It is made of aluminum alloy, features gold-plated contact pins for great conductivity, and has a 1/4 bottom tripod base plate for added stability. The adapter is compatible with Canon EOS EF Mount lenses and Canon EOS M series Mirrorless Cameras, and has a focus mode of auto focus and a focal length multiplier of 0.71x.The Viltrox EF-EOS M2 mount ada…    See more
- **Lens design:** Prime
- **Focus type:** Auto Focus
- **Image stabilisation:** Optical
- **Model name:** EF-EOS M2 Auto Focus Lens Adapter
- **Real angle of view:** 1.41 Degrees
- **Maximum aperture:** 1.27 Millimetres

## Images

![VILTROX EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS-M M2 M3 M5 M6 M10 M50 M100 - Image 1](https://m.media-amazon.com/images/I/71LXvN3cL9L.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.

## Frequently Bought Together

- VILTROX EF-EOS M2 Auto Focus Lens Adapter 0.71x Reducer Speed Booster for Canon EF Mount Lens to Canon EF-M Mount Mirrorless Camera EOS-M M2 M3 M5 M6 M10 M50 M100
- Canon EF 50mm f/1.8 STM - camera lenses,MAIN-20650

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-01-23*