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Using your telescope:

After you have aligned your viewfinder, you are ready to start observing! 

Put the 20mm eyepiece into the diagonal to get the widest field of view. This wider field of view will make it easier to 

locate and track objects. 

Use the panhandle to move the scope up, down and side to side until your target comes into view in the eyepiece. It 

is important to remember that the rotation of the Earth means objects will move out of your eyepiece fairly quickly.  

Once you have found and focused on your desired target, you can track it as it journeys across the night sky using the 

panhandle. 

For a closer look at an object, you can insert the 12.5 mm eyepiece. The magnification will increase from 30x to 48x.

For a more closer look at an object, you can insert the 2x Barlow lens. The magnification will increase to 60x for the 

20 mm eyepiece and 96x for the 12.5 mm eyepiece.

Cleaning:

Your telescope is a precision optical device and keeping the optics free of dust and dirt is crucial for optimal 

performance. To clean the lenses (objective and eyepiece) use only a photo-grade soft brush or a lint-free cloth, like a 

microfiber cloth. Do not press down too hard while cleaning, as this might scratch the lens. Ask your parents to help if 

your telescope is really dirty. f necessary, the cleaning cloth can be moistened with an optical glass cleaning fluid and 

the lens wiped clean using very little pressure. Do not use harsh detergents!

Make sure your telescope is always protected against dust and dirt. 

After use, leave it in a warm room to dry off before storing.  

f=20 mm

f=12.5 mm

The Moon

f=20 mm

f=12.5 mm

Terrestrial Images

Possible Objects for Observation:

Terrestrial objects

Take note of the examples below, including Mount Rushmore and the 

golf course. Start with the 20 mm eyepiece and focus until the image 

is clear. After mastering the 20 mm eyepiece, switch to the 12.5 mm 

eyepiece and practice scanning and focusing until the image is clear. 

Choose several terrestrial objects to practice focusing on, but never 

point your telescope at or near the sun, or you risk blindness.

The Moon

Diameter: 3,476 km

Distance: Approximately 384,401 km

The Moon is the Earth’s only natural satellite, and it is the second brightest 

object in the sky (after the Sun). Although it is our closest neighbor, a lot 

of people have never really taken a good long like at the Moon. With your 

telescope, you should be able to see several interesting lunar features. 

These include lunar maria, which appear as vast plains, and some of the 

larger craters. The best views will be found along the terminator, which 

is the edge where the visible and cloaked portions of the Moon meet.

Troubleshooting Guide:

No picture

Remove dust protection cap and sun-shield from the objective opening.

Blurred picture

Adjust focus using focus ring.

No focus possible

Wait for temperature to balance out.

Bad quality

Never observe through a glass  surface such as a window.

Viewing object visible in the finder, but not 

through the telescope

Align finder to telescope (see instructions)

Despite using star diagonal prism the picture is 

“crooked”

The star diagonal prism should be vertical in the eyepiece connection. 

Summary of Contents for 80-30103

Page 1: ...not mix old and new batteries Do not mix alkaline standard carbon zinc or rechargeable ni cad ni mh etc batteries Optical design Magnification with 2x Barlow lens Front lens clear aperture Focal lengt...

Page 2: ...of the Sun Doing so may result in a permanent loss of vision Risk of fire Do not place device particularly the lenses in direct sunlight The concentration of light rays could cause a fire Do not disa...

Page 3: ...om How To Set Up Note We recommend assembling your telescope for the first time in the daylight or in a lit room so that you can familiarize yourself with assembly steps and all components 1 4a 5a 6a...

Page 4: ...after it has traveled a certain distance focal length Eyepiece An eyepiece is a system made for your eye and comprised of one or more lenses In an eyepiece the clear image that is generated in the foc...

Page 5: ...ng the telescope position the red dot using the two adjustment screws so that it shares the same view as the one in your eyepiece The front screw will move the viewfinder up and down and the other wil...

Page 6: ...detergents Make sure your telescope is always protected against dust and dirt After use leave it in a warm room to dry off before storing f 20 mm f 12 5 mm The Moon f 20 mm f 12 5 mm Terrestrial Image...

Page 7: ...components that are powered by batteries Batteries should be kept out of children s reach When inserting batteries please ensure the polarity is correct Insert the batteries according to the displayed...

Page 8: ...la 14 Scalpel 15 Tweezers Needle Stirring Rod Pipette 1 2 3 4 6 7 8 9 10 10 12 14 15 13 11 Not suitable for children under 3 years of age Contains functional sharp points Observe Investigate Discover...

Page 9: ...e Turn on light Readjust focus Start with the lowest power objective 5x No image Centre object on slide under lowest power objective No light Replace batteries Check on off position How Do I Observe T...

Page 10: ...ic bags and rubber bands out of the reach of children as these materials pose a choking hazard Risk of blindness Never use this device to look directly at the Sun or in the direct proximity of the Sun...

Page 11: ...ars are the perfect companion for countless outdoor adventures With these sturdy binoculars you can investigate amazing species and sights Take them on a nature walk to get a detailed look at birds an...

Page 12: ...pieces and or objective lenses only use a soft lint free cloth like a microfiber cloth Do not apply excess pressure to the cloth to avoid scratching the lenses To remove more stubborn dirt moisten the...

Page 13: ...Notes Visit us at nationalgeographic com 13...

Page 14: ...National Geographic s net proceeds support vital exploration conservation research and education programs Notes 14...

Page 15: ...Visit us at nationalgeographic com Notes 15...

Page 16: ...SAFETY REQUIREMENTS OF ASTM F963 2017 National Geographic Partners LLC All rights reserved NATIONAL GEOGRAPHIC and Yellow Border Design are trademarks of the National Geographic Society used under li...

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