Hello Michael, I got my 80-200 AF-S Nikkor about 10 days ago and the TC-14E already a bit longer. The 80-200 manual states as well as the TC-E as the TC-B converters as usable accessoires. However there is nothing mentioned on the AF-operation! I have tested the 80-200 AF-S with the TC-14E (on both a F5 and F90) and autofocus works well (a little bit slower than without the converter, but still amazingly fast, compared to the older 80-200). The manual for the TC-14E (which is the same for the TC-20E) states the following: "when using a F5, F4 series, F/N90 series and F/N70 series camera body both autofocus and manual focus using electronic rangefinder are possible with an AF-I/AF-S Nikkor lens having maximum aperture of f/4 or brighter (f/2.8 or brighter for the TC-20E). For darker lenses, focus manually without using electronic rangefinder". This manual states also that the AF-I converters (the TC-14E and TC-20E) are designed exclusively for use with AF-I and AF-S Nikkor lenses. Other lenses cannot be attached. I hope this information helps and good luck with the 80-200 AF-S. Greetings, Marc Raes, Belgium. [EMAIL PROTECTED]