[nirofo]

I have used a Nikkor 80-200 f2.8 quite successfully with a Teleplus 7 element 2X AF converter and also a Nikon TC201Ais (not AF). No problems with vignetting with either, autofocus on the Teleplus is good if there's enough light. I assume the Nikon 300mm G lens is the 70-300, I havn't used this lens but I have the Nikkor 75-300 which works ok with Teleplus 2X AF converter!

Dont believe everything Nikon tries to tell you, I used a TC1.6 Manual to AF converter quite successfully with various autofocus and non autofocus lenses up to 150-500mm f5.6 Tokina ATX. Nikon said it wouldn't work with anything above f4 - ??

nirofo.