Nikon Zoom Lens history

1975 : New Zoom series was introduced.
* New = Lens body was newly redesigned and the lens itself was coated with the unique multiple coating.
1977 : Ai Zoom series was introduced.
* Ai system = Automatic Maximum Aperture Indexing : The lens maximum aperture is automatically sended to the camera body.
1980 : E zoom series was introduced.
1982 : Ai zoom ED was introduced.
* ED lens : uses ED (Extra-low Dispersion) glass which minimizes chromatic aberration that is remarkable in telephoto lenses.

Well, this is about it for Nikkor zoom lens.

Go to Nikkor Standard Lens.