Night Owl Optics Nob5X Nexgen 50Mm Binoculars Users Manual

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1465-H Henry Brennan, Dr.

El Paso, Texas 79936

1-800-444-5994

www.nightowloptics.com

MNOBIN - 041409 MADE IN BELARUS

PLEASE READ

Excessive exposure to bright light, with power on,

will destroy internal Image Intensifier Tube.

Night Vision device is designed for nighttime use only.

Not for use in daylight conditions nor in lighted environments.

Keep lens cap on device when not in use to protect optics

and internal Image Intensifier Tube.

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CUSTOMER SERVICE

If you have any questions or problems with your device, you may visit our website at

www.nightowloptics.com where you will find answers to the most frequently asked questions.

If you experience any problems with your device, or if your device is in need of service, please call our

customer support number 1.800.444.5994. The hours of operation are 8:00 a.m.-5:00 p.m. MST,

Monday to Friday.

LIMITED ONE YEAR WARRANTY

Congratulations on the purchase of your new Night Vision device. This certifies that the Warrantor

warrants this product to be free of defects in material and workmanship when used in accordance with

the accompanying owner’s manual. Warrantor’s obligation under this Warranty shall be limited to the

original purchaser to repair or replace, free of charge, within the specified period of Warranty. This

Warranty is not transferable.

This Warranty does not apply to any Night Vision products that have been subject to indirect damage due

to misuse, abuse, accident, and alteration due to the attempt to repair a unit by a non-authorized repair

agent. This Warranty does not cover damage to the intensifier tube due to using the unit in the daytime or

in a lighted area. Please see owner’s manual for the proper conditions of use.

During the Warranty period, Warrantor and/or any of its affiliates or authorized repair agents will, at their

discretion, repair or replace defective parts in the warranted products free of charge.

Proof of purchase is required to make a claim under this warranty.

PROCEDURE FOR WARRANTY CLAIM

Please contact a Night Vision Customer Service Representative by mail or telephone for return

authorization.

Warrantor will not accept any returns unless they contain a return authorization number issued by a Night

Vision optics Customer Service Representative.

Should you be interested in returning your device for service, please include with your device its original

carrying case, manual, adapters, and carrying straps. Also, please pack the unit with enough protective

material so it does not get damaged or scratched during shipment. Please include your name, shipping

address, telephone number, along with proof of purchase and a brief note describing the defect. The unit

will be repaired or replaced at the discretion of the Warrantor. In the event the repairs are not covered by

this Warranty, an estimate will be sent for your approval. Please know that non-Warranty repair or

refurbishing of your device is always provided at a reasonable cost.

NOTE TO FOREIGN COUNTRY CUSTOMERS

This warranty may vary in other countries, check with your distributor for details.

Factory warranty follows the channel of distribution.

Warranty does not cover shipping costs

Quick Start

GET FAMILIAR WITH THE DEVICE

HOW TO FOCUS YOUR NIGHT VISION DEVICE

In a LIGHTED environment:

Step 1 Install Battery (battery not included).

Step 2 DO NOT REMOVE the LENS CAP.

The pinhole in the lens cap lets through a small amount of light.

Removing lens cap in daylight could damage the unit.

Step 3 Rotate the EYEPIECES clockwise until they stop.

Step 4 Press POWER button to turn device on.

Lens caps should still be installed on the device.

Step 5 Look through the EYEPIECE.

Look at an object across the room, and rotate EYEPIECE until object comes into focus.

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FOCUS ADJUSTMENT KNOB

(NOT ON NONB2FF)

BATTERY

COMPARTMENT

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Frequently Asked Questions

Why are the projected images always green using Night Vision technology?

Night Vision phosphor screen is purposefully engineered because the human eye can differ-

entiate more shades of green than other colors.

How should I care for my Night Vision device?

Do not operate in lighted conditions, device is for use in the dark.

Do not drop the device. The internal intensifier tube is made of glass and is sensitive to impact.

Why do you focus both the front (Objective lens) and Eyepiece (Ocular)?

You do not see through the Night Vision device, like a day binocular. Rather you see the

phosphor screen on the back of the tube. The objective lens focuses the image on to the front

of the intensifier tube. That image is then converted into electrons. The electrons strike the

phosphorous screen converting electrical energy into a visible image. The eyepiece focuses

your vision on to the image on the phosphorous screen.

What is the effective range of Night Vision?

Maximum range is up to 700 ft. depending on the model. The maximum viewing distance

depends on the environmental conditions. Overcast conditions, fog or rain will reduce the

effective distance you can see. The Infrared Illuminator will increase viewing range, espe-

cially in areas of complete darkness where there is no ambient light.

What is the maximum effective distance of the Infrared Illuminator?

75 to 125 yds. The farther the object, the less intense the infrared light will be on the target.

Are Night Vision devices safe?

Night Vision products include shield-encased image intensifiers. The infrared illuminator uti-

lizes light emitting diodes (LED’s) operating in the infrared range and will not harm your eyes

like a laser.

Recognize that the image produced on the phosphorous screen can be very bright. Staring into

a very bright light causes the pupil to constrict. Your eye needs time to adjust to ambient light.

When can I expose the unit to light?

For demonstration purposes there is a pinhole in the lens cap, which enables you to power on

the unit in the light. The lens cap can be taken off during daylight, but the unit has to be off.

What is Generation 1? How does it differ from other Generations of Night Vision devices?

Generation 1, 2, 3 and 4 all employ electron bombardment technology. All of these technolo-

gies convert light into electrons and reproduce the image on a phosphorous screen.

Generation 1 produces a higher resolution image than Generation 2.

Generation 3 and 4 are used by the United States Military and are very expensive.

Generation 2, 3 and 4 use a fiber optic device and/or special chemicals to further amplify light.

NONB2FF NOB3X NOB5X

Fixed Focus Central Focus Central Focus

GENERATION 1 1 1

MAGNIFICATION 2.0X 3.0X 5.0X

POWER SUPPLY

1: CR-123 3V Lith 1: CR-123 3V Lith 1: CR-123 3V Lith

(not included)

WEIGHT 25.3 oz. 30.6 oz. 38.8 oz.

(with out battery) 759 g 918 g 1164 g

DIMENSIONS 5.9x5.8x2.9 in 6.7x5.8x2.5 in 7.8x5.8x2.9 in

150x147x74 mm 170x147x64 mm 198x147x74 mm

OBJECTIVE LENS

LENS DIAMETER 24 mm 42 mm 50 mm

ANGULAR FIELD OF VIEW

30° 19.7° 15°

FOV@200 ft / 64.4m 106 ft. 70 ft. 53 ft.

32.2 m 21.2 m 16.1 m

MINIMUM FOCUS RANGE

16.5 ft 6.6 ft 6.6 ft

Product Specifications

How to Care for your Night Vision Device

If you intend to store your unit for more than 24 hours, it is best to remove the batteries.

Keep the unit in a cool, dry place.

Clean lenses the same way you would your camera, with professional lens cleaning supplies.

The lenses are optically coated and may be scratched if abrasive material is used or if dirt is

rubbed into the glass. Do not touch lens surface with fingers.

Do not drop or expose to shock. The Intensifier Tube is made of glass.

Do not disassemble or attempt to service the device. The power supply generates 17,000 volts inside!

If your device needs repair, please refer to your warranty card.

Do not leave inside car on a hot, sunny day.

Clean exterior with a soft, clean cloth.

If condensation is visible on the unit, return it to a normal temperature and wait until the con-

densation disappears before using.

In a DARK environment:

Step 6 In the dark, remove LENS CAP.

Step 7 Do NOT rotate EYEPIECE. No OBJECTIVE LENS rotation is necessary.

You have already adjusted the EYEPIECE to your individual eyesight.

This binocular is a fixed focus field view binocular,

no focusing for distance is needed.

Step 8 Click on the INFRARED button.

A beam of infrared light, invisible to the human and animal eye, provides extra illumination.

For technical assistance, call our customer service line at 1-800-444-5994.

If you have any problems, call before returning the product to the store where purchased.

Image Quality

The image you see through a Night Vision device is VERY DIFFERENT from the image observed

using day-time binoculars. A Night Vision image is electronically amplified and then repro-

duced on a phosphorus screen and therefore not as “clear” as a day-time binocular image.

Light and dark marks (spots) caused by the Electronic Intensifier Tube can be seen in the field

of view. These are normal and are not defects in the Electronic Intensifier Tube.

Image sharpness is also not consistent across the field of view. The image has very high

resolution in the center. The image becomes more distorted toward the periphery of the image.

Due to our sophisticated corrective optics, the amount of distortion in your Night Vision device

is less then the distortion found in other Night Vision devices.

Typical Image Appearance

Use of the Infrared Illuminator in a closed room, or at close range, will exaggerate the light and

dark spots on the Electronic Intensifier Tube. The Infrared Illuminator, although invisible to

human and animal eyes, is very bright at close range when viewed through the device. This

bright light exaggerates the spots on the Electronic Intensifier Tube. Testing your Night Vision

device indoors with the Infrared Illuminator, at close range, is not representative of the

performance of the device in its intended outdoor application.

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Power Control

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Infrared Illuminator Control

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Infrared Illuminator

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Battery Compartment

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Objective Lenses

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Low Battery Indicator

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Focus Adjustment Knob

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NOB5X

NOB3X

NONB2FF

MODEL FEATURES

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Performance

under Various

Light Conditions

Complete Darkness

Your Night Vision device works

by amplifying available natural

light. In complete darkness, with

no available natural light, you

cannot see without the use of the

Infrared Illuminator (IR). The IR

works like a flashlight, but is

invisible to human and animal

eyes.

Half-Moon

A half-moon provides a substan-

tial amount of ambient light to be

amplified by the internal

Electronic Intensifier Tube.

Without the assistance of the IR,

you can recognize a man-sized

object about 100 yards away.

Quarter-Moon

A quarter-moon provides the

minimal amount of ambient light

to allow viewing unassisted by

the IR. Without the IR illuminat-

ed, a man-sized object can be

recognized about 60 yards away.

With the IR illuminated, this dis-

tance is more than 100 yards.

The IR will greatly improve target

recognition.

Urban Environment

(with man-made light sources)

Streetlights and headlights will

generally not damage the

Electronic Intensifier Tube, if a

safe distance away. As a precau-

tion, do not point the device

directly into a light source. At a

distance of more than 30 yards,

most common man-made light

sources will generally not dam-

age the device.

How Night Vision Works

Light coming into the device from the direction of the object is gathered by the objective lens

and focused onto the Image Intensifier Tube.

The front of the Image Intensifier Tube contains a photocathode which converts light into electrons.

The device contains a very high voltage power supply, which converts the 3 volts supplied by

the batteries into 17 kilovolts.

The high voltage hurls the electrons into the phosphorous screen. The phosphorous screen

illuminates with an image when struck by electrons. The eyepiece optic then focuses the phos-

phorous screen image to your eye.

Troubleshooting

Unit may require several seconds after power-on for image to appear. This is normal.

Focus Problems

Try in lighted environment with lens cap on.

Are you able to focus the eyepiece?

• YES - Use in dark with lens cap off but do not rotate eyepiece.

• NO - Call our Customer Service Line

Unit does not turn on.

Light does not illuminate when button is pressed.

• Check to see if batteries are installed correctly

• No batteries or Dead batteries

• Power light on, but no image

• Unit could be defective, call our Customer Service Line

Image is too dark

• Use the Infrared (IR) Illuminator

• Take off the lens cap

Projected image is dim.

• Batteries are low – insert new batteries

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