---
product_id: 134935458
title: "EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 iii E-M10 iv E-M10 iii"
brand: "viltrox"
price: "€ 422.87"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/134935458-ef-m2ii-0-71x-speed-booster-ef-to-micro-4
store_origin: GR
region: Greece
---

# 0.71x Focal Reducer USB Upgrade Ready Auto-Focus Enabled EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 iii E-M10 iv E-M10 iii

**Brand:** viltrox
**Price:** € 422.87
**Availability:** ✅ In Stock

## Summary

> 📸 Elevate Your Photography Game with VILTROX!

## Quick Answers

- **What is this?** EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 iii E-M10 iv E-M10 iii by viltrox
- **How much does it cost?** € 422.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/134935458-ef-m2ii-0-71x-speed-booster-ef-to-micro-4)

## 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 Upgrades:** Stay ahead with USB firmware updates for enhanced functionality.
- • **Light Up Your Shots:** Boost your aperture by 1 f-stop for stunning low-light performance.
- • **Precision Engineering:** Durable metal construction with inbuilt copper contacts for flawless focus.
- • **Versatile Compatibility:** Perfectly pairs with a range of M4/3 models for ultimate flexibility.
- • **Transform Your Lens Game:** Unlock the full potential of your Canon EF lenses on M4/3 cameras!

## Overview

The VILTROX EF-M2II 0.71x Speed Booster is a cutting-edge adapter that allows Canon EF lenses to be used on Micro 4/3 cameras, enhancing focal length and aperture while providing auto-focus capabilities. Its robust design and USB upgrade feature ensure longevity and adaptability for modern photographers.

## Description

VILTROX EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 iii E-M10 iv E-M10 iii

## Features

- Compatibility: Viltrox EF-M2 II is an upgrade version of EF-M2, allowing Canon EF series lenses to be used on M4/3 cameras, such as GH4 GH5 GF6 GF1 GX1 GX7 GX85 E-M5 E-M10 E-M10II E-PL5
- 0.71x Focal Reducer Converter: focal length is multiplied by 0.71 based on the original (equivalent focal length = focal length x 0.71), which helps enlarge 1 stop aperture
- AF Functions & Adjustable Aperture: auto focusing function, increasing the lens 1 f-stop and the amount of light into the virtual background, better highlight the theme; adjust the aperture directly from camera to control the lens’ actual aperture
- Material & Design: bayonets are made of metal with surface plating treatment, being durable and sturdy; inbuilt copper electronic contacts and IS function, making focus precise and clear, with 1/4" thread tripod foot at the bottom, etc
- USB Firmware Upgrade: Equipped with USB interface, can realize software upgrade. Can perfect new functions of the lens mount adapter and fix bugs according to follow-up upgrades.

## Product Details

- **Brand:** VILTROX
- **Focal Length Description:** 50 millimeters
- **Lens Type:** Standard
- **Compatible Mountings:** Canon EF
- **Camera Lens Description:** 4

## Images

![EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 iii E-M10 iv E-M10 iii - Image 1](https://m.media-amazon.com/images/I/717w8uWCpHL.jpg)

## Frequently Bought Together

- VILTROX EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 iii E-M10 iv E-M10 iii
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**Shop now:** [https://www.desertcart.gr/products/134935458-ef-m2ii-0-71x-speed-booster-ef-to-micro-4](https://www.desertcart.gr/products/134935458-ef-m2ii-0-71x-speed-booster-ef-to-micro-4)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-05-12*