Canon EF Extender

Canon EF Extender

Canon EF Extender is available in two strengths 2X and 1.4X, that increase the focal length of your lens by a multiple of 2 or 1.4, i.e. 200mm with a 2x will become the equivalent of a 400mm lens.

So for a fraction of the cost of a new lens of say 400mm you can use your 70-200 lens, that everyone has, add an extender and you have a 140-400mm.

 

Buy your Canon Extender EF 2x III  from Amazon.

 

This is very true but there is a downside, with a 2X extender you will loose 2 f-stops i.e. your Canon EF 70-200mm f/4L IS Lens is now an f8 lens, this is the additional cost every time you add an extender, the 1.4X extender will cost you 1 f-stop, i.e. f5.6 There is also a loss in sharpness with both extenders. Some cameras won’t auto focus at f8.

Extenders some photographers love them some hate them.

 

Personally I have a Canon EF Extender 2X

Why

  1. I don’t own a 400mm lens.
  2. The number of times I would use a 400mm lens does not justify the cost.
  3. If I had a 400mm lens something would have to be left out of my Lowepro Flipside 300 backpack
  4. I wouldn’t be prepared to carry the additional weight and possibly not use the lens.

The 2X Extender is 72mm diameter x 53 mm long and weighs a mere 325 grams.

It is my opinion that this more than offsets the loss of 2 f-stops and reduction in sharpness.

For my workflow as a landscape photographer the camera will on most occasions be on a tripod and the f-stop would have been possibly f11.

As for the loss in sharpness, if it is a problem then I would recover as much as possible in post.

I don’t use auto focus very often when capturing landscapes.

I don’t claim that this workflow negates the problems that occur when using an extender, to me it makes it a workable solution when there is the need for the extra focal length.

Leave a comment below, I am interested to know what you think.

 

I am not subsidised in any way or form by Canon.

Buy your Canon Extender EF 2x III  from Amazon.

 

It won’t cost you any extra, but anything you buy will contribute towards the running costs of this site.

Thanks Alex

 

Click this link if you would prefer a Yongnou Extender  Yongnuo YN-2.0X III PRO 2x Teleconverter Extender Auto Focus Mount Lens for Canon EOS EF Len at 50% OF THE COST OF THE CANON

 

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