Bushnell NIGHT VISION 26 2429 User Manual

Remove the lens cap from the Illuminator.  
Adjust the beam of the Illuminator to focus on the object  
under observation.  
NIGHT VISION  
INSTRUCTIONS  
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).  
Lit. #: 06-2000/03-01  
Model 26-4366 includes  
a
special  
Power Button  
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 holdthe 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 theObjective Lens Focusing  
Ring to infinity. (Full clockwise as  
shown in the drawing).  
Adjust Eyepiece  
FocusingRing  
SetObjectiveLens  
FocusingRingto  
infinit.y(Turn  
clockwiseallthe  
way)  
26-2429 (2.4 x 29)  
26-3652 (3.6 x 52)  
26-4366 (4.3 x 66)  
• While looking at a distant object (at  
least 36 ft. away), adjust the  
Eyepiece Focusing Ring for the  
sharpest image.  
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.  
• Once the Eyepiece Focusing Ring  
is adjusted, you need only adjust  
the Objective Lens Focusing Ring  
as needed.  
Spots In The Image  
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.  
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.  
GETTING STARTED  
Flathead  
Screwdriver  
Installing Batteries  
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).  
With a screwdriver, unscrew the  
battery compartment cover.  
Insert two AA batteries into the  
compartment according to the + and  
– markings on the cover.  
Model  
26-2429  
26-3652  
26-4366  
Magnification  
Objective Size  
29mm  
Viewing Range (ft.)  
1.1 - 300  
Replace the batterycompartment cover.  
2.4x  
3.6x  
4.3x  
52mm  
12 - 350  
Installing The Illuminator  
66mm  
16 - 450  
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.  
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.  
Remove the black cover from the  
accessory illuminator attachment on  
the scope.  
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.  
Gently slide the Illuminator on the  
accessory iIlluminator attachment facing  
forward (toward the Objective Lens).  
Adjust  
Illuminator  
Accessory  
Illuminator  
Attachment  
Continued on page 2  

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