User manual Bushnell 26-2440

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The Illuminator requires a 3 volt  
L76 battery.  
Rotate the Illuminator button  
clockwise to the “ON” position.  
Be certain to switch the Illuminator  
“OFF” when not in use.  
Lit. #: 06-2440/03-01  
To Focus (See pic. 3)  
First, adjust the Objective Lens to ¥ as  
shown in picture 3.  
While looking at a distant object  
(at least 82 ft./25m away), adjust  
the Eyepiece Focusing Ring for the  
sharpest image.  
Once the Eyepiece Focusing Ring is  
adjusted, you only have to adjust the  
Objective Lens 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.  
6-2440 2.4x40  
Scope will not turn on.  
Squeeze and release the Power Lever firmly and completely.  
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.  
Image is not focused.  
Adjust the focus on the Eyepiece. Adjust the Objective Lens. You  
must be at least 4.4 ft./1.3 meters from the subject you are viewing.  
If no improvement, clean lenses, they may be foggy or dusty.  
(See To Focus).  
Visibility decreases or disappears.  
Bright light sources such as headlights may cause visibility to degrade  
or disappear completely. Turn the scope away from the light source.  
The unit will restore itself in 1 or 2 minutes. Squeeze and release the  
Power Lever to reactivate the scope. Conditions such as fog or  
extremely dark environments will decrease visibility.  
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.  
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 Battery Chart  
• Duracell DL 1/3N  
Eveready 2L76  
• Kodak K58L  
Sanyo (other) CR 1/3N  
Radio Shack 23-265A  
Model 26-2440 Night Vision Scope utilizes a self energizing power  
supply and does not require batteries. The IR Illuminator requires a  
volt battery, see list below.  
Using The Power Lever (See pic. 1)  
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.  
When not using for an extended amount of time, store the product  
in a dry location.  
To activate the scope, squeeze and  
• Avoid turning the product on in extremely bright light conditions.  
release the Power Lever, located on  
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.  
the top of the scope.  
The image will eventually fade out,  
this is normal and not a defect.  
Squeeze the Power Lever again to  
reactivate the scope.  
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.  
Optional Illuminator (See pic. 2)  
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.  
Your Bushnell Night Vision Product includes an infrared illuminator.  
This allows you to see in complete darkness when no ambient light  
source is available.  
Install the Illuminator by inserting the screw-mount onto the side  
of the scope.  
Continued on page 2  

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