ATN TTWS Series, Руководство оператора

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FIGURE 3.2. SWITCHBOARD OF TTWS
3.2.2. FOCUSING
To focus the scope you need to adjust the diopter first. The scope
has an adjustable eyepiece with a range of +2 to -6 diopter. Simply
turn the diopter clockwise until it stops. Then concentrate on any
object and slowly turn the diopter back counter clockwise until the
grain in the image is sharp. Then rotate the eyecup to accommo-
date use over the left or right eye.
The TTWS models have ability to focus either long range or short.
Focus the front lens to rotate it until the image and the grain are
both sharp.
FIGURE 3.3. FOCUS ADJUSTMENT