On Tue, 10 Jul 2012 19:00:02 -0400, tony cooper wrote:

The D40, D60, and the D5000 all take AF-S lenses with the motor in the
lens. Other Nikon lenses that will fit camera body will not autofocus.
You can manually focus, though.

I'm curious.

This is great information.

But how do you know that?

That is, what specific 'feature' do I look for in a lens to know if it
will work with my existing D40/D60/D5000 Nikons and how it will work in a
'future' unspecified as yet Nikon 'war camera'?

Is it the "AF-S" feature alone?