Jack, there was no doubt the 1.4x was going to work with this lens. As for focus adjustment, if it's impossible to correct back focus through the camera"s AF adjusment, and all else is perfect about the lens, I would inquire about cost of Nikon adjusting the lens (assuming it's not under warranty). Nikon as been pretty good about back focus adjustment these days, especially with regards to the 200 f2. There have been reports though that some lenses that fall within AF adjustment on the D700/D3s, for whatever reason don't on the D800! Again just a suggestion to send it in, depending on the circumstances.Just took delivery of the VR1 200/2. OMG it is a freaking LASER, even wide open! DOF Is paper thin -- and thus my issue. This one back focuses slightly to the point I cannot correct it with -20 dialed in on my body It sits about 3cm behind PoF at 15 meters, and it's a 3cm you can see because the DoF is so freaking thin. Option one is to return it. Option two is to see if Nikon service will adjust it, but that sounds like a crap-shoot and a PITA to begin with. I am sick. Oh, and the 1.4x works great on it -- final image is still extremely sharp wide open -- a skosh behind the 200 naked, but still sharper than the 70-200 VR2 at 200 and f4... LASER!
If you think the lens with the 1.4x is spectaculary good, you'll be quite impressed with the 2x when it has to be used in a pinch, depending of course on camera to subject distance. Both these converters work extraordinarily well (especially the 1.4) with the current 200 f2, the 300 f2.8 among some others.
Dave (D&A)
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