--- product_id: 469690941 title: "VILTROX EF-M2II Focal Reducer Booster Adapter Auto-Focus 0.71x for Canon EF Mount Series Lens to M43 Camera GH4 GH5 GF6 GF1 GX1 GX7 E-M5 E-M10 E-M10II E-PL5" brand: "viltrox" price: "€ 196.75" currency: EUR in_stock: true reviews_count: 5 category: "Viltrox" url: https://www.desertcart.hr/products/469690941-viltrox-ef-m2ii-focal-reducer-booster-adapter-auto-focus-0 store_origin: HR region: Croatia --- # Auto-focus & aperture control 0.71x focal reducer multiplier Durable metal build with plating VILTROX EF-M2II Focal Reducer Booster Adapter Auto-Focus 0.71x for Canon EF Mount Series Lens to M43 Camera GH4 GH5 GF6 GF1 GX1 GX7 E-M5 E-M10 E-M10II E-PL5 **Brand:** viltrox **Price:** € 196.75 **Availability:** βœ… In Stock ## Summary > πŸ“Έ Unlock pro-level lens power with VILTROX EF-M2II β€” your M4/3 game-changer! ## Quick Answers - **What is this?** VILTROX EF-M2II Focal Reducer Booster Adapter Auto-Focus 0.71x for Canon EF Mount Series Lens to M43 Camera GH4 GH5 GF6 GF1 GX1 GX7 E-M5 E-M10 E-M10II E-PL5 by viltrox - **How much does it cost?** € 196.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/469690941-viltrox-ef-m2ii-focal-reducer-booster-adapter-auto-focus-0) ## 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 - β€’ **Expand Your Vision:** 0.71x focal reducer boosts your lens speed by 1 stop, letting in more light and enhancing low-light performance. - β€’ **Sharper Shots, Faster Focus:** Experience seamless auto-focus with precision electronic contacts for crystal-clear images every time. - β€’ **Plug & Play Firmware Upgrades:** Stay ahead with USB firmware updates that unlock new features and keep your adapter future-proof. - β€’ **Built to Last, Designed to Impress:** Premium metal construction with surface plating ensures rugged durability and a sleek professional look. - β€’ **Full Compatibility, Zero Compromise:** Effortlessly mount Canon EF lenses on a wide range of Micro Four Thirds cameras from Panasonic and Olympus. ## Overview The VILTROX EF-M2II is a high-performance focal reducer adapter that converts Canon EF lenses for Micro Four Thirds cameras, multiplying focal length by 0.71x and increasing aperture by 1 stop. Featuring auto-focus, aperture control, durable metal construction, and USB firmware upgrade capability, it delivers enhanced image quality and versatility for serious photographers using Panasonic and Olympus M4/3 systems. ## Description Main Features - Auto-focus function and inbuilt electronic contacts - Focal length multiplier is 0.71x. Equivalent focal length = focal length x 0.71, which helps enlarge 1 stop aperture - Support aperture adjustment, EXIF signal transmission and USB port for firmware upgrade - Made of high quality metal with surface plating treatment, very durable and sturdy - Gold-plated PINs bring great conductivity of signal transmitting Compatible Lenses: for Canon EF series lenses (please check the details shown in above picture) Compatible Cameras: for M4/3 series cameras - Panasonic GH5/GH4/GH3/GH2/GH1/GF9/GF8/GF7/GF6/GF5/GF4/GF3/GF2/GF1/ GX85/GX8/GX7/GX1/G7/G6/G3/G2/G1 -Olympus E-M10/E-M10II/E-M10III/E-M5II/E-M5/E-M1/E-PL8/E-PL7/E-PL5/E-PL3/E-PL2/PEN-F/E-PM2/E-PM1/E-P5/E-P3/E-P1 Review: This is really GREAT! Review: very reliable ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RK8CLVV | | Best Sellers Rank | #335,462 in Electronics ( See Top 100 in Electronics ) #699 in Tripod Camera Mounts & Clamps | | Brand | VILTROX | | Brand Name | VILTROX | | Camera Lens | The VILTROX EF-M2 II is a focal reducer and booster adapter that allows Canon EF series lenses to be used on M4/3 cameras. It features a 0.71x focal length multiplier, enabling a 1-stop aperture enlargement. The adapter supports auto-focusing, aperture adjustment, and EXIF signal transmission. It is made of high-quality metal with surface plating treatment, ensuring durability. Compatible with a w… | | Camera Lens Description | The VILTROX EF-M2 II is a focal reducer and booster adapter that allows Canon EF series lenses to be used on M4/3 cameras. It features a 0.71x focal length multiplier, enabling a 1-stop aperture enlargement. The adapter supports auto-focusing, aperture adjustment, and EXIF signal transmission. It is made of high-quality metal with surface plating treatment, ensuring durability. Compatible with a wide range of Canon EF lenses and M4/3 cameras from Panasonic and Olympus. Camera Lens Description The VILTROX EF-M2 II is a focal reducer and booster adapter that allows Canon EF series lenses to be used on M4/3 cameras. It features a 0.71x focal length multiplier, enabling a 1-stop aperture enlargement. The adapter supports auto-focusing, aperture adjustment, and EXIF signal transmission. It is made of high-quality metal with surface plating treatment, ensuring durability. Compatible with a wide range of Canon EF lenses and M4/3 cameras from Panasonic and Olympus. See more | | Colour | black | | Compatible Camera Models | Olympus E-M1, Olympus E-M10, Olympus E-M10II, Olympus E-M10III, Olympus E-M5, Olympus E-M5II, Olympus E-P1, Olympus E-P3, Olympus E-P5, Olympus E-PL2, Olympus E-PL3, Olympus E-PL5, Olympus E-PL7, Olympus E-PL8, Olympus E-PM1, Olympus E-PM2, Olympus PEN-F, Panasonic G1, Panasonic G2, Panasonic G3, Panasonic G6, Panasonic G7, Panasonic GF1, Panasonic GF2, Panasonic GF3, Panasonic GF4, Panasonic GF5,… | | Compatible Mountings | Canon EF, Micro Four Thirds | | Customer Reviews | 3.8 out of 5 stars 267 Reviews | | Exposure Control Type | Automatic | | Fixed Focal Length | 100 Millimetres | | Focal Length Description | 50 millimeters | | Focus Type | Auto Focus | | Image Stabilization Type | Optical | | Item Weight Unit of Measure | 0.26 Kilograms | | Lens | Standard | | Lens Coating Description | Nano Coating or Super Integrated Coating | | Lens Design | Prime | | Lens Mount | Canon EF | | Lens Type | Standard | | Manufacturer | 1 | | Maximum Aperture | 1.4 Millimeters | | Maximum Focal Length | 100 Millimeters | | Maximum Focal Length Unit of Measure | 100 Millimeters | | Media Type | ProductImage, EnhancedContent | | Minimum Focal Length | 1 Millimeters | | Model Name | EF-M2 II | | Number of Diaphragm Blades | 7 | | Real Angle Of View | 22.5 Degrees | ## Product Details - **Brand:** VILTROX - **Focal Length Description:** 50 millimeters - **Lens Type:** Standard - **Compatible Mountings:** Canon EF - **Camera Lens Description:** 4 ## Images ![VILTROX EF-M2II Focal Reducer Booster Adapter Auto-Focus 0.71x for Canon EF Mount Series Lens to M43 Camera GH4 GH5 GF6 GF1 GX1 GX7 E-M5 E-M10 E-M10II E-PL5 - Image 1](https://m.media-amazon.com/images/I/717w8uWCpHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is really GREAT! *by F***S on 21 October 2021* ### ⭐⭐⭐⭐⭐ very reliable *by B***N on 8 December 2023* ### ⭐⭐⭐⭐⭐ One of the most important tools I have! *by T***E on 2 January 2026* ## 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 - Blackmagic Design Pocket Cinema Camera 4K (CINECAMPOCHDMFT4K) - [New Version] SMALLRIG BMPCC 4K & 6K Cage for Blackmagic Design Pocket Cinema Camera 4K & 6K w/Cold Shoe, NATO Rail – 2203 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/469690941-viltrox-ef-m2ii-focal-reducer-booster-adapter-auto-focus-0](https://www.desertcart.hr/products/469690941-viltrox-ef-m2ii-focal-reducer-booster-adapter-auto-focus-0) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-24*