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Posts: 11,315
Registered: ‎12-07-2012

Re: 1DX error code 20....

"... I could use my Canon 2x Extender with the Sigma lens."


Why not use the Sigma tel-con with the Sigma lens.  Certainly a person that buys a $3500 lens can buy the correct extender?

I have one for my 120-300mm and it works. I don't like it but it works.  I don't like tel-cons in general, however. I have not tried it with my Canon tel-con.



EOS 1DX and 1D Mk IV and several lenses!
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