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00606_Text_Zeisopht 3.txt
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1997-10-28
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462b
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ZEISS OPHTHALMOMETER
Focusing the Eyepiece
Turn the eyepiece counterclockwise
until the circle in the center of the field
is blurred. Then turn the eyepiece
clockwise until the circle just comes into
sharp focus. The measuring scales are
visible in the top half of the field and
these should also be in sharp focus now.
Some models have a lever just below
the eyepiece which removes the scale
from view.