3
BATTERY InsTAllATIon
Install standard cR123A batteries as follows:
1. Unscrew the battery cap(A).
2. Insert CR123 battery(B), observing the polarity as
indicated.
3. Replace the battery cap and screw cap hand tight.
Install AA batteries as follows:
1. Unscrew the battery cap(A).
2. Screw the AA battery adapter(C) in to the battery
housing.
3. Insert the AA battery(D), observing the polarity as
indicated.
4. Replace the battery cap and screw cap hand tight.
opERATIon
• Take the NVB8 out of the case.
• Install the battery into the housing with the polarity order as shown on the scope. Bat-
tery Type: 3 Volt, Lithium, CR123A .
• Press the button (short press - less than 1.5 sec.) to turn the unit on with the protective
lens cover still attached to the lens.
Do not turn the unit on in the daytime without
the protective lens cap on. You should see green glow in the eyepiece.
• Observe the scene and adjust the diopter for optimal image clarity.
• You may now enter dark environment or simply shut the lights off in order to darken the
room.
• Next, remove the lens cap/daylight filter. Adjust the front lens focus. You need not
change the diopter adjustments meanwhile.
• To turn the unit off, push the button again by short press (less than 1.5 sec.).
focusIng
To focus the NVB8, first you will need to adjust
the diopter. Simply turn the diopter clockwise
until it stops. Then, while looking through the
eyepiece at an object, slowly turn the diopter
counter-clockwise until the grain in the image
is sharp.
NOTE:
We suggest that you focus the di-
opter in the daylight with the filter on.
Next focus the front lens until the image and
the grain are both sharp. When you are in
low-light environment and the daylight filter is
Diopter adjustment
Lens focus adjustment
A
B
A
c
D
