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af-i

Nikon s new seriesof AF lenses, involves the intergration of coreless motors into their super telephotolenses. This gives these lenses quick, ultra quiet autofocus operations. While theAF-S lenses housing a silent wave motor for even quicker and quiet operations thanthe AF-I lenses, which was being in the stage of being replaced by the newer series.

mirglossary

af-i

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Foto-Magazin

af-i

Lens with built-in autofocus drive motor. CPU is also built in. AF-I Nikkor lenses send information on distance to the camera body and are classified as D-type AF Nikkor lenses.
betterphotocom

af-i

A NIKKOR lens with a built-in conventional rotor type autofocus drive motor.
nikongrossary