So overpriced....
Honestly, how many of us are going to drop $12,000 for a lens? I can get a 400mm f/3.5 (about 1/3 stop slower) ED AIS Nikkor used and in outstanding condition for $1600-1800. So what if you have to focus it yourself? My eye focuses a lot better than any autofocus system in low light anyway.
........ I hope that its introduction will free up some of the current 400mm f2.8 models in the field...........
If it does, the price of the older ones will go up.
Then I'll buy two of them right now! Make it three!
WM