G-type lenses
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Nikkor AF-D lenses introduced in 2000. They don't have an aperture ring. Aperture setting is made through a "Sub-Command Dial" on modern auto bodies. G lenses were designed to weight less and be less expensive than their counterparts with an aperture ring. AF bodies without a "Sub-Command Dial" can use G-type lenses in Program and Shutter priority modes only. The first was the 70-300mm f/4-5.6G AF. A G lens, being an AF-D lens, provides Distance information to the camera body.
