Nikon AI-S Micro-NIKKOR 105mm f-2.8 - Manual (Page 10)

Grasp the lens by its mounting ring. Position the lens
in the camera’s bayonet mount, lining up the aper­
ture index on the lens with the lens mounting index
on the camera, and twist the lens counterclockwise
until it clicks into place.
To remove, depress the lens release button on the
camera and twist the lens clockwise.
• When mounting the lens on a camera with a meter
coupling lever (Al-type), make sure that the
camera’s meter coupling lever is correctly posi­
tioned; when mounting on a camera without this
lever (non Al-type), you need “manual” maximum
aperture indexing. In both cases, check the
camera’s instruction manual.