p.1 #4 · What TCs can be used with 80–200/2.8 AF-S?
I have a Sigma 1.4 TC that works somewhat fine on my 80-200 AF-S, the only downfall is that it hunts for focus quite a bit. I have also used a TC-14E II and a TC-17E II on it which worked absolutely great.
p.1 #5 · What TCs can be used with 80–200/2.8 AF-S?
@ molson: that's great—but why is this lens not listed on B&H's reference page, I wonder. I am very glad to hear this, BTW; the new version of the TC20III is supposed to be excellent. Thanks.
p.1 #9 · What TCs can be used with 80–200/2.8 AF-S?
Any of the Nikon TC-E teleconverters will work with the 80-200mm f2.8 perfectly. I know that the Nikon teleconverters will not work with Sigma lenses so would expect the reverse to be true as well. Any TC is going to degrade image quality so might as well buy the best you can find.