Sigma 400mm f5.6 teleconverter options know to work

Started 4 months ago | Questions thread
mirthseeker Regular Member • Posts: 248
Re: Sigma 400mm f5.6 teleconverter options know to work

The Sugma teleconverter chart for A Mount which used to be on a Sigma website appears to have disappeared.  However, from memory, Sigma APO teleconverters were made to only fit APO lenses, and will not mount on non APO's.

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