---
product_id: 97054450
title: "YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS"
brand: "yongnuo"
price: "¥1970"
currency: JPY
in_stock: false
reviews_count: 3
url: https://www.desertcart.jp/products/97054450-yongnuo-extender-ef-2x-iii-teleconverter-for-canon-eos
store_origin: JP
region: Japan
---

# 2.2 x 2.9 in 9 elements 12.1 oz YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS

**Brand:** yongnuo
**Price:** ¥1970
**Availability:** ❌ Out of Stock

## Summary

> 📸 Elevate Your Shots with Yongnuo Magic!

## Quick Answers

- **What is this?** YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS by yongnuo
- **How much does it cost?** ¥1970 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/97054450-yongnuo-extender-ef-2x-iii-teleconverter-for-canon-eos)

## Best For

- yongnuo enthusiasts

## Why This Product

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

## Key Features

- • **1-Year Warranty:** Peace of mind with a full year of coverage for your investment.
- • **Lightweight Design:** Weighing only 12.1 oz, it’s the perfect companion for on-the-go photography.
- • **Precision Engineering:** Crafted with 9 optical elements in 5 groups for crystal-clear images.
- • **Seamless Compatibility:** Designed for Canon EF mount, ensuring effortless integration with your gear.
- • **Unleash Your Creativity:** Transform your Canon lenses with 2X magnification for stunning detail.

## Overview

The Yongnuo Extender EF 2X III is a high-performance teleconverter designed for Canon EOS cameras, featuring a robust lens construction of 9 elements in 5 groups. With a compact size of 2.2 x 2.9 inches and a lightweight design of 12.1 oz, it enhances your photography experience while ensuring compatibility with Canon EF mounts. Plus, enjoy a 1-year warranty for added assurance.

## Description

This teleconverter from Yongnuo allows you to use telephoto lenses with an increased magnification, featuring a microcomputer built into the unit so your lens and camera can continue communicating information such as EXIF data, settings changes, and camera exposure modes. If you need a bit more reach from yourfavorite telephoto lens, this Yongnuo unit is a great addition to your gear lineup and will live up to the brand's reputation for putting out quality camera parts and components. Compatible Lenses EF 135mm f/2L USM EF 200mm f/2.8L USM EF 200mm f/2.8L II USM EF 200mm f/1.8L USM EF 200mm f/2L IS USM EF 300mm f/4L USM EF 300mm f/4L IS USM EF 300mm f/2 .8L USM EF 300mm f/2.8L IS USM EF 400mm f/5.6L USM EF 400mm f/4L DO IS USM EF 400mm f/2.8L USM EF 400mm f/2.8L II USM EF 400mm f/2.8L IS USM EF 500mm f/4.5L USM EF 500mm f/4L IS USM EF 600mm f/4L USM EF 600mm f/4L IS USM EF 800mm f/5.6L IS USM EF 100-400mm f/4.5-5.6L IS USM EF 70-200mm f/4L USM EF 70-200mm f/4L IS USM EF 70-200mm f/2.8L USM EF 70-200mm f/2.8L IS USM EF 70-200mm f/2.8L IS II USM EF 300mm f/2.8L IS II USM EF 400mm f/2.8L IS II USM EF 500mm f/4L IS II USM EF 600mm f/4L IS II USM EF 1200mm f/5.6L USM some autofocus functions may not operate when the teleconverter is in use. (Depending on your camera)

## Features

- Yongnuo Extender EF 2X III - Front & Rear Caps - 1 Year Warranty
- Compatibility: Canon EF mount(Electronically controlled)
- Lens construction: 9 elements in 5 groups
- Dimensions Diameter X Length: 2.2 x 2.9" / 55 × 73.9mm
- Weight: 12.1 oz / 342 g

## Images

![YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS - Image 1](https://m.media-amazon.com/images/I/51B3oKz66DL.jpg)
![YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS - Image 2](https://m.media-amazon.com/images/I/513ZlK3rgFL.jpg)
![YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS - Image 3](https://m.media-amazon.com/images/I/515xqZen0pL.jpg)
![YONGNUO Extender EF 2X III (Teleconverter) for Canon EOS - Image 4](https://m.media-amazon.com/images/I/51mfW0CtRZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Usually works as expected but has some compatibility issues
  

*by C***Y on Reviewed in the United States on December 11, 2017*

When it works it gets the job done. The loss of sharpness is as expected. Loss of auto-focus is also as expected, depending on the lens and camera combination. For some combinations where auto-focus shouldn't work (e.g. older camera and lens slower than f/4) I had the good surprise to get a somewhat usable auto-focus. The only - but substantial - disappointment is that the extender doesn't work at all with a Canon Rebel T7i and a Sigma 150-600mm Contemporary: I just get an error message telling me that the communication between the lens and the camera failed. In that situation, the EXIF won't have the focal length aperture data. Also, remote focusing from a laptop won't work at all. However, in all fairness, as it is a compatibility issue between Yongnuo, Canon and Sigma, I can't put all the blame on Yongnuo.

### ⭐⭐⭐⭐⭐ 







  
  
    Well built budget alternative to the Canon extender.
  

*by M***. on Reviewed in the United Kingdom on October 31, 2019*

At half the price of the Canon extender on which it is based, this is good value. The build quality is good and it mounts very solidly to both the camera and lenses. The colour of the body is a close, but not exact match for Canon's L series lenses.In common with all extenders, you will lose 2 stops of light, so don't expect to be able to use it for sports or wildlife shooting. I'll be using it for landscapes, city capes and moon photography, so fast focus will not be an issue. Autofocus is patchy, depending a lot on having a fast lens and the camera body used, but in my experience this is true of all extenders.Optical quality seems pretty good. There is a slight drop in sharpness and some CA is introduced (see the close-up of the light hood in the 2nd image below.), but this is easily eliminated in post. It doesn't appear to impact colour rendition.These samples were all shot from the same position with a Canon L 100-400mm and an old Vivitar 500mm mirror lens. The first 4 are from the Canon, the first two are without the extender and the second two with. The final four follow the same sequence with the Vivitar. The softness in the final four images is down to the Vivitar rather than the extender.

### ⭐⭐⭐⭐⭐ 







  
    Magnífico duplicador
  
  

*by S***A on Reviewed in Spain on June 28, 2019*

Me ha encantado el duplicador, funciona muy bien y queda ensamblado a la perfección en. Mi equipo es una Canon 6D y el objetivo un 70-200 f:2.8 L USMSin ninguna duda volvería a comprarlo, me ha parecido un opción fabulosa

---

## 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://www.desertcart.jp/products/97054450-yongnuo-extender-ef-2x-iii-teleconverter-for-canon-eos](https://www.desertcart.jp/products/97054450-yongnuo-extender-ef-2x-iii-teleconverter-for-canon-eos)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-11*