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flicker for the first several seconds of use, even when in a dark environment, before the scope corrects itself and
functions properly. The scope may "snow" for several minutes after being exposed to a bright light source
(daylight, a car's headlights, fire, etc.) even if being operated in complete darkness.
• The image is not focused...
Adjust the focus of the eyepiece and the objective (see Use and Testing). Check that the lenses are not
foggy or dusty; if they are, carefully clean the external surfaces of lenses with a soft cotton fabric. Replace the
battery if the total battery charge is less than 2.2 V. When the unit is brought into a warm environment from a
cold one, condensation may appear on the internal lenses; you must wait two hours before using the unit.
• Visibility decreases or disappears...
Bright light sources, such as headlights, may cause visibility to decrease or disappear and the image to
flicker. Turn the power off and turn the scope away from the light source; visibility will restore itself in several
minutes.
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