dick ranez wrote:
Unfortunately, lens hoods are a particularly high margin profit item for manufacturers. A proprietary twist feature is supposed to make sure you only use OEM hoods, but if you're willing to use a screw in third party hood, you can often find them from 1/5 to 1/3 the price of the originals. Makes it a little difficult to change filters, but not too great an inconvenience
You neglected to point out that when possible Nikon makes their lens hoods compatible with more than one lens. An example is the HK-38. It fits the 400mm F/2.8E as well as the 800mm F/5.6E. And as far as calling them high margin, they are only $999.95.
You can get them for free though, included with the lenses.