5
8X Lens
5X Lens
3X Lens
INTERCHANGEABLE LENS
( O P T I O N AL)
The NVG-7 with 3X, 5X or 8X front lens can be used as a powerful night vision bi-ocular.
To install 3X Afocal Lens screw it into the front lens of NVG-7.
To install 5X/8X lens unscrew the objective lens of NVG-7 from the body. Please note to hold the
ridged edge of the lens with one hand and then grasp the neck of the unit with the other and twist
in opposite directions. It is very important not to grasp the eyepieces but grasp the neck of unit. To
install lenses screw 5X/8X lens to the free place (make sure that the unit is turned off.
STORAGE AND CARE
• If the device is not to be used for extended period of time (more than 10 days) remove the bat-
tery.
• Avoid touching lenses. If fingerprints or traces of dirt or dust appear, clean their surface with a
Photographic lens cleaning tissue.
• Keep lens cap/daylight filter on when not in use.
• The NVG-7 is not harmful to the user or the environment.
• Do not disassemble except to clean the front lens and eyepiece:
it will void your warranty.
• Evaluate the scope function by looking through it in a lit environment
with the daylight filter lens
cap on.
Never use in daylight without the daylight filter lens cap on.
•
Never point the NVG-7 at a bright light source.
• Adverse atmospheric conditions such as fog, smog, or haze and a lack of ambient light (moon
or starlight) may diminish the effective viewing distance.
• If you use the rubber eyecaps for a long period of time, you may suffer skin inflammation. If you
develop any symptoms, consult a doctor immediately.
TROUBLESHOOTING
Q:
Flashes, flickers, or clicking occur while operating
S:
If it occurs within the first five minutes of inserting new batteries, it is normal and the device
will resume normal operation soon thereafter. If it occurs for more than 10 minutes, contact for
service instructions.
Q:
Dark spots on screen.
S: These are either cosmetic blemishes in the intensifier tube or dust particles.
Q:
Screen becomes darker than at previous use.
S:
Replace batteries. If problem persists, contact your dealer or other authorized service repre-
sentative for service instructions.
Q:
Image not clear.
S:
Adjust objective lens, and/or the eyepiece.