OOPSOS: Have I read it right or my poor vision/english?. The tripod ring mount = $224 extra?
@ Marike6 - Not much intellectual property in a tripod collar. If you think I'd be getting off cheap buying a competitor's collar, let me leave you with this thought - if it were me, I'd rather pay $300 for a tripod collar by ReallyRightStuff because it would be worlds better than Nikon's offering. They already make tripod collars for many Nikon lenses, even most of which come with a collar when you buy them, but RRS's collars are so much better that folks buy them to replace the junky collar from Nikon.
Robert Soderlund: For me, "bokeh" usually translates into "censored, i want you to see this only". This is only my opinion since i do not want to spoon feed people subjects and mostly i tend to follow realism over expression, i want people to see and choose the appropriate subject in a photo. There are of course situations where the picture would get too cluttered without a certain spot focused in on. I find this f/4 a welcome addition over the gap that exists currently (2.8-5.6), enough lux power without going heavily into fast sport territory while keeping the size/weight down a bit.
How it actually performs is another story, looks damn good on paper!
Maybe you don't know that "bokeh" does not mean "out of focus". Most people take it to mean that, but most people are WRONG. "bokeh" refers to the quality of the out-of-focus areas, not how far out of focus they are. Don't feel bad, it's a common mistake.