--- product_id: 64105334 title: "VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5" brand: "viltrox" price: "63059F" currency: XPF in_stock: true reviews_count: 13 url: https://frenchpolynesia.desertcart.com/products/64105334-viltrox-ef-m2-ii-0-71x-speed-booster-adapter-mft store_origin: PF region: French Polynesia --- # 1-stop aperture boost for low light USB firmware upgradeable 0.71x focal reducer for wider view VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 **Brand:** viltrox **Price:** 63059F **Availability:** ✅ In Stock ## Summary > 📸 Unlock pro-level optics with the VILTROX EF-M2 II – your lens’s new best friend! ## Quick Answers - **What is this?** VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 by viltrox - **How much does it cost?** 63059F with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [frenchpolynesia.desertcart.com](https://frenchpolynesia.desertcart.com/products/64105334-viltrox-ef-m2-ii-0-71x-speed-booster-adapter-mft) ## 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 - • **Expand Your Frame:** 0.71x focal reducer widens your perspective, perfect for cinematic shots and immersive storytelling. - • **Rugged Metal Build:** Durable all-metal bayonets with gold-plated contacts ensure reliable, long-lasting connectivity and performance. - • **Future-Proof Firmware:** Easily update via USB to unlock new features and compatibility, keeping your gear cutting-edge. - • **Seamless Autofocus & IS:** Precision AF and built-in image stabilization keep your visuals crisp and steady, no matter the scene. - • **Brighter Shots, Sharper Focus:** Gain an extra f-stop aperture for stunning low-light performance and beautifully blurred backgrounds. ## Overview The VILTROX EF-M2 II is a premium 0.71x speed booster adapter designed to mount Canon EF lenses on Micro Four Thirds cameras. It reduces focal length by 29%, increases aperture by one stop for enhanced low-light and depth-of-field control, and supports autofocus and image stabilization. Built with durable metal bayonets and gold-plated contacts, it offers precise, reliable performance. Firmware upgrades via USB keep it future-ready, while a tripod thread adds versatile mounting options. ## Description In the first 6-month period and non-human damage can be free of charge for new. VILTROX is warranted against any and all defects in workmanship or performance for 2 years. Within the warranted period, all materials are free of charge. Support lens anti-shake function Weight: approx. 118g (without lid) Diameter and length: 67mm×20mm Can be adjusted via the adapter ring Can also be adjusted by the camera Supports EXIF transmission and displays the current information on the camera screen (such as aperture, shutter speed, exposure parameters, etc.) All metals lens body Ensuring accuracy and durability Gold-plated PINs bring great conductivity of signal transmitting You can update the firmware version of this lens via the USB port to accommodate more new camera models Ring on the bottom with 1/4 screws that can be easily installed on the tripod or other fixed bracket. ## Features - Compatibility: VILTROX EF-M2 II is an upgrade version of EF-M2, it is designed for Canon EF series lenses to be used on M4/3 mount cameras, such as GH4 GH5 GF6 GF1 GX1 GX7 GX85 E-M5 E-M10 E-M10II E-PL5(not for EF-S mount lens) - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B077TQMZL5 | | Best Sellers Rank | 18 in Camera Flash Adapter Rings | | Brand Name | VILTROX | | Camera Lens | The VILTROX EF-M2 II is a 0.71x speed booster adapter that allows Canon EF mount lenses to be used on M4/3 cameras. It reduces the focal length by 0.71x and increases the aperture by one stop, enabling better low light performance and a shallower depth of field. The adapter features metal bayonets, inbuilt copper electronic contacts, and IS function, ensuring precise focusing and clear images. It also has a 1/4" thread tripod foot and supports USB firmware upgrade for future enhancements. | | Compatible Devices | M43 Camera | | Compatible Mountings | Canon EF | | Customer Reviews | 4.2 4.2 out of 5 stars (417) 4.2 out of 5 stars | | Exposure Control Type | Automatic | | Focus Type | Auto Focus | | Global Trade Identification Number | 06953400321951 | | Image Stabilization Type | IS | | Lens Design | Speed booster | | Lens Mount | Canon EF, Micro Four Thirds | | Lens Type | adapter | | Manufacturer | VILTROX | | Manufacturer Part Number | EF-M2 | | Maximum Aperture | 1.8 f | | Model Name | EF-M2 | | Model Number | EF-M2_SML | | Number Of Items | 1 | | Number Of Packs | 1 | | Unit Count | 1.0 count | | Zoom Ratio | 0.71 | ## Images ![VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 - Image 1](https://m.media-amazon.com/images/I/61PWQN2AMZL.jpg) ![VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 - Image 2](https://m.media-amazon.com/images/I/7188v8LVMvL.jpg) ![VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 - Image 3](https://m.media-amazon.com/images/I/71m1md30wcL.jpg) ![VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 - Image 4](https://m.media-amazon.com/images/I/71HdK-ZL0qL.jpg) ![VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 - Image 5](https://m.media-amazon.com/images/I/71kB8OJCkpL.jpg) ## Available Options This product comes in different **Size Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Brilliant value. *by on Reviewed in the United Kingdom 3 June 2018* After a bit of fiddling with the lens facing glass as per online instructions, I've now got this taking some wonderful images (see above, taken at f4 on my Sigma 18-35 1.8 lens paired with a GH4). It's perhaps not quite as sharp as using a decent native lens. However I intend to use it for video, so it's more than good enough for that. It seems well made - it fits the camera/lens snuggly. Autofocus isn't perfect, but it's actually better than I thought it would be. ### ⭐⭐⭐⭐⭐ Better than expected! *by on Reviewed in the United Kingdom 20 June 2019* I was very nervous when i clicked "order now"; I had heard good and bad stuff and therefore didn't know what to expect.I picked the right choice! The Sigma 18-35mm looks great with this on the Pocket 4K, and all things works as a native lens (just not the autofocus). When I go down to 1.2 I see some blur in the sides and middle — but if your on a budget or never go to 1.2 this is really great overall. ### ⭐⭐⭐⭐ Possibly faulty unit, replacement is great so far!! *by on Reviewed in the United Kingdom 24 August 2019* UPDATE:The new item arrived and worked straight away without any problem. First unit must have been faulty. Still great build quality and price.I’ve upped my rating from 2 to 4 stars. Possibly 5 stars once I’ve used it some more.Original review:I wanted to like this product SO much but it didn’t work right out of the box. I was using a listed lens, the Canon 70-200mm f4 but from power on with the GH5, I received the “Lens attachment Failed” warning. (Adapter firmware up to date)The build quality looks great and the price is reasonable but that doesn’t really matter if the product doesn’t work!I’m ordering a replacement to see if it was a faulty unit. I’ll update this review accordingly depending on how the replacement works out. ## Frequently Bought Together - VILTROX EF-M2 II 0.71x Speed Booster Adapter MFT for EF mount Lens to Micro 4/3 Cameras GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-10 EM-5 - Sigma 210101 18-35mm F1.8 DC HSM Lens for Canon (Filter size 72mm) Black --- ## 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://frenchpolynesia.desertcart.com/products/64105334-viltrox-ef-m2-ii-0-71x-speed-booster-adapter-mft](https://frenchpolynesia.desertcart.com/products/64105334-viltrox-ef-m2-ii-0-71x-speed-booster-adapter-mft) --- *Product available on Desertcart French Polynesia* *Store origin: PF* *Last updated: 2026-09-18*