Extenders with 5d3

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Mar 25, 2011
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alben said:
Thanks for the info, I had not realised the 2x would be f11 :-[ any preference between the Canon or Kenko, my instinct is to go with the Canon Mk111 even if it is more expensive.

Alan
One thing to consider is that the Kenko will work with lenses like the 100mmL and the 70-300mmL while the Canon TC either will not mount at all, or only works at certain focal lengths.
I bout a Kenko f/1.4 and it worked for about 20 images and then dies the 2nd time I went to use it. I did not replace it, just returned it because Canon announced the f/8 firmware and I already have Canon TC's.
I have not heard of reliability issues with Kenko, so it might have just been bad luck.
 
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