Bushnell NIGHT VISION 26-2429 User manual

Congratulations on the purchase of your Bushnell Night
Vision Product. Bushnell Night Vision products are comprised
of high quality image intensifier tubes and optics. Bushnell
Night Vision products amplify existing light, allowing you to
see in dark conditions too dark for the naked eye.
HOW NIGHT VISION WORKS
Bushnell Night Vision products collect and amplify existing light
through the objective lens, which is then focused on the image
intensifier. Inside the intensifier, a photocathode is "excited" by the
light and converts the photon energy into electrons. These electrons
accelerate across an electrostatic field inside the intensifier and strike
a phosphor screen (like a green monochrome TV screen) which emits
an image that you can see. It is the acceleration of electrons, which
provides gain and enhances the image. This is a Generation I device.
GETTING STARTED
Installing Batteries
•With a screwdriver, unscrew the
battery compartment cover.
•Insert two AA batteries into the
compartment according to the + and
– markings on the cover.
•Replace the batterycompartment cover.
Installing The Illuminator
•Your Bushnell Night Vision product
includes an infrared illuminator.
This allows you to see in complete
darkness when no ambient light source
is available.
•Remove the black cover from the
accessory illuminator attachment on
the scope.
•Gently slide the Illuminator on the
accessory iIlluminator attachment facing
forward (toward the Objective Lens).
•Remove the lens cap from the Illuminator.
•Adjust the beam of the Illuminator to focus on the object
under observation.
Using The Power Button And Illuminator
•Never turn the scope on in daylight conditions with the lens cap
off. The pinhole in the lens cap allows you to test the scope in
daylight conditions. (The lens cap for model 26-4366 does not
contain a pinhole).
•Model 26-4366 includes a special
Aperture Setting Control feature. This
allows the user to reduce the
brightness of the image by adjusting
the Brightness Control Ring. Therefore,
the user can use model 26-4366 in
daylight conditions with the lens cap
off as long as the brightness control is
at the lowest setting.
•To use the scope and Illuminator, depress and hold the Power Button.
•After you release the Power Button, the image will slowly fade out.
This is normal and is not a defect.
To Focus
• First, turn the Objective Lens Focusing
Ring to infinity. (Full clockwise as
shown in the drawing).
•While looking at a distant object (at
least 36 ft. away), adjust the
Eyepiece Focusing Ring for the
sharpest image.
• Once the Eyepiece Focusing Ring
is adjusted, you need only adjust
the Objective Lens Focusing Ring
as needed.
Spots In The Image
• You may see spots in the image. These vary from scope to scope and
are cosmetic blemishes inside the scope. These are normal for Night
Vision Scopes and are NOT a defect.
TROUBLESHOOTING
Scope will not turn on.
Check that the batteries are installed properly. Replace the batteries
with new ones. Check the battery contacts to ensure they are clean
and free of corrosion. Press and hold the power button firmly
and completely.
Image is not focused.
Adjust the focus on the Focusing Eyepiece. Adjust the Objective Lens
Focusing Ring. For a focused image, you must be a certain distance
from the object you are viewing. Refer to the following chart for the
recommended minimum viewing range. If still no improvement, clean
the lenses; they may be foggy or dusty. (See To Focus).
Model Magnification Objective Size Viewing Range (ft.)
26-2429 2.4x 29mm 1.1 - 300
26-3652 3.6x 52mm 12 - 350
26-4366 4.3x 66mm 16 - 450
Visibility decreases or disappears.
Bright light sources such as headlights may cause visibility to degrade
or disappear completely. Release the Power Button and turn the
scope away from the light source. The unit will restore itself in 1 or 2
minutes. Conditions such as fog or extremely dark environments will
decrease visibility.
Scope flashes.
The scope may flash when used in a bright environment. It may also
flash during the first few seconds of use in dark environments.
Illuminator
Accessory
Illuminator
Attachment
Adjust
Illuminator
Power Button
SetObjectiveLens
Focusing Ringto
infinity. (Turn
clockwise all the
way)
Adjust Eyepiece
Focusing Ring
Flathead
Screwdriver
NIGHT VISION
I N S T R U C T I O N S
Lit. #: 06-2000/03-01
Continued on page 2
26-2429 (2.4 x 29)
26-3652 (3.6 x 52)
26-4366 (4.3 x 66)

One-Year LIMITED WARRANTY
Your Bushnell®Night Vision is warranted to be free of defects in materials and
workmanship for one year after the date of purchase. In the event of a defect
under this warranty, we will, at our option, repair or replace the product,
provided that you return the product postage prepaid. This warranty does not
cover damages caused by misuse or improper handling, installation or
maintenance of the product.
Any return made under this warranty
must be accompanied by the items listed below:
1) A check in the amount of $15.00 to cover the cost of handling
2) Name and address for product return
3) An explanation of the defect
4) Product should be well packed in a sturdy outside shipping
carton to prevent damage in transit and return postage prepaid
to the address listed below:
IN U.S.A. Send To:
Bushnell Performance Optics
8500 Marshall Drive
Lenexa, Kansas 66214
For products purchased outside the United States and Canada please contact
your local dealer for applicable warranty information. This warranty gives you
specific legal rights. You may have other rights which vary from country
to country.
©2001 Bushnell Performance Optics
IN CANADA Send To:
Bushnell Performance Optics
25A East Pearce Street, Unit 1
Richmond Hill, Ontario L4B 2M9
CARE & MAINTENANCE
•When not using for an extended amount of time, remove batteries
and store the product in a dry location.
• Avoid turning the product on in extremely bright light conditions.
•Handle this product like you would a camera. Though Bushnell Night
Vision products are durably constructed, the image intensifier tube
consists of glass and is subject to breakage.
•Keep the optics clean. We recommend using a camera cleaner kit to
clean the outside of the objective and eyepiece lenses. Follow the
directions with the kit.
• Do not disassemble this product. Unauthorized disassembly not only
voids the warranty but may also cause damage from the lack of
special tools and techniques.
WARRANTY / REPAIR
2