Kenko Teleplus HD 1.4x 2.0x DGX Telephoto Converter

We have a look at the Kenko Teleplus HD 1.4x and 2.0x DGX Telephoto Converters.

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Kenko Teleplus HD DGX 1 4x 2 0x (1)

We have a look at the Kenko Teleplus HD 1.4x DGX and Kenko Teleplus HD 2.0x DGX Teleconverters. Offering 1.4x and 2.0x extra reach, these offer good value for money priced at £139 and £169 respectively. 

 

What is a teleconverter? 

A teleconverter increases the focal length equivalent by the magnification factor on the converter and reduces the aperture of the lens by 1 or 2 stops. So a 100mm f/2.8 lens with a 1.4x teleconverter would become equivalent to a 140mm f/4 lens, and with a 2.0x teleconverter would become equivalent to a 200mm f/5.6 lens. We've shown the difference in what you get below:

Teleconverter Examples
Teleconverter Examples, 1st image: 90mm f/2.8, 1/160s, ISO640, 2nd image: 126mm f/4, 1/200s, ISO1600, 3rd image: 180mm f/5.6, 1/160, ISO3200.

 

Why should you use a teleconverter?

If you want to get 1.4x or 2x more telephoto reach, then you can buy a teleconverter for much less than a telephoto lens might cost, and it connects into your existing system.

For example, if you already have a 100mm lens, but want to get a 200mm lens you could look at a teleconverter or a 200mm lens. The price difference can be quite substantial.

Lens already owned: Teleconverter cost Lens Cost
100mm f/2.8 Macro 2.0x £169 Canon 200mm f/2.8 L lens (£699)
100mm f/2 2.0x £169 Canon 200mm f/2 L lens (£4099)


Another benefit is that the teleconverter is much smaller than a long telephoto lens, and it's possible to maintain the same minimum focus distance as the original lens, unlike extension tubes, which bring the focus distance closer to the camera.

 

When shouldn't you use a teleconverter?

Due to problems with auto focus (AF), you should be careful not to use a lens that has an aperture slower than f/4.0 with the 1.4x teleconverter, or slower than f/2.8 with the 2.0x teleconverter. If the auto-focus doesn't work then you will need to use manual focus. Another note to be aware of is that the Kenko teleconverters do not work with the Canon EF 50mm f/1.8 lens.

 

Kenko Teleplus HD DGX 1.4x and 2.0x Teleconverter Features:

  • Electrical contacts to maintain connection for aperture/focus control
  • EXIF information recorded in images
  • Digital multi-coating

1.4x

  • 3 elements in 2 groups

2.0x 

  • 5 elements in 3 groups

 

Kenko TelePlus HD 2.0X DGX Other sample images

As we've added the teleconverter, the camera has compensated for the reduction in light (and reduced aperture) by increasing the ISO speed. As you'd expect, this is most noticeable with the 2.0x teleconverter, and if you want to maintain a brighter aperture, then the 1.4x teleconverter is the choice. However, for the most reach, then the 2.0x teleconverter gives you the most and would be most suitable for bright shooting conditions, and brighter lenses.  

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