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X 2 converter

I have a 400d eos canon and a sigm 50-500 1:4-6.3 APO DG HSM lens which sigma x2 converter do I nedd?

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  1. with this combination of camera/lens you will not have AF when a x2 converter is applied! that is because in all canon cameras (except 1D series) there is no AF when the Aperture is smaller then F5.6.
  2. if you don't mind using MF, u need the sigma 2x EX DG Tele Converter.

Posted on Oct 29, 2008

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