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What determines teleconverter compatibility? 9 ericbowles 1 year
Nikon TC-20E III disappointing on a 70-200 2.8G ED VRII ? - 23 60 msmoto 1 year
TC-20E III 21 Baba Ganoush 1 year
FYI - Manual remote focusing with Sigma teleconverters issue 1 Panamon_Creel 4 years