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Canon Lens Extender EF2X MK III

The Canon Extender EF 2X III is designed for select Canon EF mount L-series telephoto lenses. It increases the focal length of a lens by a factor of 2x while still delivering superb image quality.

Increase Your Lens's Focal Length by A Factor of 2X

The Extender EF 2X III from Canon is designed for select Canon EF mount L-series telephoto lenses. It increases the focal length of a lens by a factor of 2x while still delivering superb image quality. To ensure the best possible image quality in all shooting conditions, it combines redesigned optics, improved data communication between lens and camera and enhanced environmental protection. It is ideal for photojournalists and wildlife, nature and sports photographers who need to get close to distant and challenging subjects and it reduces the need to carry heavy telephoto lenses.

Improved optical performance

The Extender EF 2x III features nine optical elements in five groups, ensuring improved optical performance. All optical elements have Canon's Super Spectra coating to reduce ghosting and flare. A new Fluorine Coating on the front and rear elements makes marks, such as spots left by water or fingerprints, much easier to clean than standard coatings.

To facilitate the accurate transfer of imaging data between the lens and camera body, the extender features an integrated processor which ensures all focusing, metering and ID information is available - allowing the photographer to capture balanced, well-exposed images. When combined with the latest range of premium Canon L-series lenses, these extenders enable AF accuracy even when capturing moving subjects. When attached, the 2x extender reduces the effective maximum aperture by two stops.

Exceptionally build-quality

A carefully positioned lens release mechanism also makes it easy to mount the extenders quickly, reducing the time that the camera and lens are exposed to the environment. The extenders offer the exceptional build-quality expected from Canon's professional products, and are resistant to both dust and water, allowing photographers to use them in extreme shooting conditions.


This converter is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L. Additionally, please see your lens and/or camera body manual for full autofocus compatibility information with the Extender EF 2X III.


  • EF mount teleconverter
  • 2.0x magnification factor
  • Microcomputer controlled
  • Communication between lens & camera
  • Spectra coating reduces ghosting / flare
  • Protective fluorine coating
  • Dust & water resistant
  • Compatible with select EF mount lenses
R 10,895 Awaiting Stock
Payment plans available
Delivery Truck Free Standard shipping included. Faster options available

What's in the box

  • Canon extender EF 2X III
    • Extender Cap E II
    • Rear Lens Cap E
    • Lens Case LP811
  • Limited 2-year Warranty

Reviewed by 1 customers

Picture quality remains sharp.

Show Details

I was a bit sceptical of the loss of 2 F-Stops before using the lens extender, but after seeing the results for outdoor and sports photography, I was super happy for what the extender could do, for the price of what it is. I added it on to an L-Series 70-200 lens and it worked a treat, and gave substantial zoom without any loss of quality or picture sharpness. It was relatively easy to compensate for the loss of the F-Stops with shutter speed, and ISO if needed, but bottom line is that its super cool to have this little additional in your camera bag when needed, as it can be added & removed with ease. I would recommend to anyone shooting outdoors.

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