Sigma TC compatible with Sigma zooms
I would like to buy a Sigma 1.4 TC to use with my Sigma 70-300mm f4.0-5.6 DG OS and my Sigma 50-200 f4.0-5.6 DC OS lenses. Is there potentially a compatibility problem? Will there be any physical interference?
I'm getting conflicting information and it would be good if one of you nice folks could settle this for me.
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