I've done a search and can find no discussions on Nikon Rumors about what the technology that is used for the various Nikon lense designations actually does.
The only reason this is a question, is that I put my 1992 35-70/3.3-4.5 Nikkor Zoom lenses on my D7000, and realized that the D7000 allows 3d matrix metering.
From all that I'd read, 3d matrix Metering requires an AF-D level or later lense, which again from everything I've read the AF lenses I have got, is not. (As a note, all the photos I've taken include in the meta data the zoom length)
Either my research is wrong, and pre AF-D lense can do 3d matrix metering on the D7000, or some pre AF-D lenses, are in fact AF-D compliant.
Ok guys, what do you know ?