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Ideal for press, sports and nature photography, the extender increases the focal length of Canon L-series telephoto or telephoto zoom lens' by a factor of 2x, with higher AF accuracy and improved communication between camera and lens

Canon Extender EF 2x III

Highlights

  • Lens is suitable for: Canon EOS Full Frame (EF) Only
  • Fitting: Canon EF Only
  • Lens Type: Converter / Adapter

Product code: 51997 (4960999664835)

CameraWorld 2 Year Guarantee
4.6
(443 reviews)

Canon Extender EF 2x III

Special Price
£429.00

Save £20.00 ! Previously £449.00

No used versions available

Product Details

Ideal for press, sports and nature photography, the extender increases the focal length of Canon L-series telephoto or telephoto zoom lens’ by a factor of 2x, with higher AF accuracy and improved communication between camera and lens

  • EF Mount Teleconverter
  • 2.0x Magnification Factor
  • Microcomputer Controlled
  • Communication Between Lens & Camera
  • Spectra Coating Reduces Ghosting/ Flare
  • Protective Fluorine Coating
  • Dust and Water Resistant
  • Compatible with Select EF Mount Lenses

Focal length extension for super-telephoto lenses

The Extender EF 2x III is specially designed to work in conjunction with L-series IS super-telephoto lenses, extending their focal length by a factor of 2x. The extender's design ensures there is no loss of lens performance or image quality.

High-quality construction

Improved anti-reflection materials inside the lens-barrel and a coating around the outer edges of the lens elements reduce flare. Construction is resistant to dust and water, helping to maintain images quality.

Improved communication between lens and camera

A built in microprocessor provides accurate transfer of data from between the lens and camera delivering an improved performance in AF and metering.

Compatible with L-Series telephoto and telephoto zoom lenses

The Extender EF 2x III is compatible with most telephoto and telephoto zoom lenses within Canon’s flagship professional L-series range, extending the focal length by 2 times while only reducing the effective aperture of the lens by two stops.

Note: Compatible with Fixed focal length L-series lenses 135mm and over. All versions of the EF 70-200mm f/2.8L, EF 70-200mm f/2.8L IS, and EF 70-200mm f/4L, EF 100-400mm f/4.5-5.6L

Product Reviews

4.6
5
4
3
2
1
(Experts)
5
4
3
2
1
(Users)
Image quality, Durable, Lightweight, Easy to use, Features
Pricey
Fredmiranda

When I first tested this against the Mk2 extender for IQ with static indoor test subjects, I thought I had made a mistake in spending so much in that the differences in IQ other than in the mid / corners did not seem that different.

The Digital Picture

The Canon EF 2x III Extender mounts between your Canon EOS Digital SLR and a compatible lens (primarily Canon L Series lenses), extending the focal length of the lens by a very noticeable 2x.

Imaging Resource

We reviewed the Canon 400mm ƒ/5.6L USM back in 2008, which makes a good candidate for comparison with the 200mm ƒ/2.8L USM and 2x Extender attached. In terms of sharpness, the two are quite similar: the 400mm is slightly better at ƒ/5.6 and ƒ/16, but at ƒ/8 and ƒ/11, they're almost identical.

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Wex Photo Video

I was very impressed by this extender having tried a lesser quality one. Works very well with the Canon 70-200l is USM lens.

WEX

I bought this extender some time ago and never really used it as the resulting images were disappointing too soft. However through neccesity I recently tried it with my 1dx mk2 and my 600mm mk2 and was surprised with the quality, I have since tried it on a number of occasions with similar results.

Wex Photo Video

If you have the Canon 70-200mm f2.8, this is the ideal addition to your bag. This saves you buying a 400mm lens. Its workers perfectly and the picture quality is fantastic. If you want to save some money and have the versatility of having a 70-200 and a 140-400mm lens then it a recommended purchase.

WEX

Since buying this a couple of months ago I have used it together with my 180 macro lens for lots of nature photos and appears to be ok and getting some good shots. Well done Canon.

WEX

I have the 1.4x extender and recently purchased this extender and can't be happier. it has extended the range some of my lenses as i expected, having done some basic research as to which lens it works with and those it does not.

Wex Photo Video

Brilliant item I was about to purchase a 100-400mm Lens to compliment my 70-200mm Clad I went for the cheaper option Works a treat Right through out the range I will of course in maybe a Year or so go for the larger lens but for now I can't think of any reason to do so

WEX

I was very impressed by this extender having tried a lesser quality one. Works very well with the Canon 70-200l is USM lens.

Wex Photo Video

I bought this specifically to use with my 70-200L f2.8 IS USM II lens, and I've been very pleased with the results. I was already using the 1.4III extender with that lens, and wanted the 2x to give me yet more versatility without adding too much weight.

Wex Photo Video

I use this regularly and get good results with 7D and 1DMK1V. The EXIII much better than EXII. They work excellent in bright light with all f2.8 II L"s. Even with f4's. Bump up your sharpness and contrast 1 notch in camera. Don"t expect good results with f5.6 lens.

WEX

ok I've given this a few tries now. I know that you can't use this extender with the aperture wide open. Despite trying various settings I've found getting a clear image from it very difficult, you need to up the aperture to have half a chance, which results in having to up the iso even on the...

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Increase your lens' focal length by 2x without sacrificing image quality

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