Nikon Lens Parts

  • Nikon AI Conversion Aperture Ring #72 80-200mm f4.5

    Nikon AI Conversion Aperture Ring #72 80-200mm f4.5

    This original Nikon part allows older, prong-style lenses to be modified for compatibility with the AI (Auto-Indexing) metering system. This ring is designated No. 72. Several other rings are also available.  Ring No. 72 is for use with some Nikkor...

    $20.00
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