eBay listing is here. Overall setup makes for a very sharp 420mm package -- quite pprtable by the standards of my new 200-500:
Selling my 300mm f/4 autofocus Nikon lens. Ken Rockwell actually has a decent rundown of the different variants on this lens over the years from Nikon; mine is this one -www.kenrockwell.com/nikon/3004af.htm and his review is pretty accurate: built like a tank, optics like the AF-S version. The new PF version will cost you $2000 and is out of stock everywhere; this one is great optically and built tougher. (The newest one has VR but at the speeds most people will shoot with a fast tele prime, VR is only so useful.) Superb optics, moderate speed but excellent mechanics for limiting the focus range, drop in filters, all-metal construction, built-in sliding metal hood, made in Japan.
Glass is perfect inside and out. Some wear spots on the black paint finish, but not much considering how paint tends to wear off of metal. Working condition is perfect except that the aperture ring lock switch no longer locks.
Note: this will *not* autofocus with cheaper Nikon bodies with no in-body motor (i.e. anything lower than a D7*00 series DX body). With a higher-end Nikon body (D90, D7000 series, all FX bodies), it will autofocus, even with the included Kenko 1.4x teleconverter.
The Kenko is a 1.4 from their Pro series, and is excellent. The combination gives you a 420mm f/5.6 setup. Attached are two examples of what you can do in baseball evening lighting from the mezzanine of Yankee stadium. Note the logo visible on the ball that Brett Gardiner has fouled off.
(Behind the 300mm you'll see the reason I am selling this one -- a new 200-500, back ordered everywhere but found one while on vacation in Montreal!)
Brett Gardiner, shot from up in the mezzanine of Yankee stadium