5. PRELIMINARIES
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1 Use the peep sight or gun
sight to point the objective
lens at the target.
2 Gradually turn the eyepiece
until just before the reticle
cross-line becomes blurred.
3 Use the horizontal fine
motion screw to center the
target in the field of view.
Turn the focussing knob to
focus on the target.
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• Focussing is coarse while the
AT-B2 focussing knob feels
heavy to rotate. Rotating in
the reverse direction (less
heavy) will give a fine
focussing motion.
4 Looking through the
telescope, shift your eyes
slightly in the horizontal and
vertical directions.
5.2 FOCUSSING AND SIGHTING
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