Leupold Hunting Equipment Owner's Handbook Manual page 13

If your Leupold scope is one of our models with an eyepiece that has a lock
ring, follow these simple steps:
1. Grasp the eyepiece with your hand and back it away from the lock ring.
Once the lock ring is free from the eyepiece, turn it clockwise away from
the eyepiece to keep it out of the way during the adjustment.
2. If you tend to hold things away from yourself to see them clearly (you
are farsighted) turn the eyepiece counterclockwise a couple of turns. If
you hold things close to yourself to see them clearly (you are nearsighted)
turn the eyepiece clockwise a couple of turns.
3. Looking through the scope when pointed at the sky, take a few quick
glances at the reticle. The focus of the reticle should be noticeably
different from when you started. Continue this process until the reticle
appears clear and sharp.
4. When you are satisfied with the image of the reticle, turn the lock ring so
that it rests firmly against the eyepiece.
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