Difference Between Nikon D and G Lenses?

[Photo-John]

At the risk of admitting that I don't know it all...

What is the difference between Nikon "D" and Nikon "G" lenses?

Thanks!

[Axle]

Nikon D lenses, added a CPU chip to the lens that allows it to measure distance, to better assist the flash in what sort of power it needs to output.

Nikon G lenses have no manual aperture ring.

For more on D - http://www.kenrockwell.com/nikon/nikortek.htm#afd
For more on G - http://www.kenrockwell.com/nikon/nikortek.htm#g

[deckcadet]

All G lenses are also D, important to remember.

[godwell]

yes, there is a good deal of difference between the two.