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SRT70MM
70 M M R E FL EC TO R T E L E S COPE
W/ PA N H A N DLE MOU N T
I N ST RU C T I ON M A NUAL
WARNING:
SUN HAZARD — Never look directly at the sun
with this device.
WARNING:
CHOKING HAZARD — Small parts.
Not for children under 3 years.
1
X
CR2032
3V
INCLUDED
WARNING:
Contains button or coin cell battery.
Hazardous if swallowed — see instructions.
1
WARNING:
The lens contains lead that may be harmful.
Wash hands after touching.
WARNING:
This product can expose you to chemicals including lead,
which is known to the State of California to cause cancer.
For more information go to www.P65Warnings.ca.gov.
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EN
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Related Manuals for National Geographic SRT70MM
Summary of Contents for National Geographic SRT70MM
- Page 1 1 0 + 8 0 -50 072 SRT70MM 70 M M R E FL EC TO R T E L E S COPE W/ PA N H A N DLE MOU N T I N ST RU C T I ON M A NUAL...
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Page 2: Important Safety Instructions
Customer Service: Call 1-866-252-3811 READ AND FOLLOW THE INSTRUCTIONS BEFORE USE. IMPORTANT SAFETY INSTRUCTIONS KEEP THESE INSTRUCTIONS FOR LATER USE. • SUN WARNING: WARNING: NEVER ATTEMPT TO OBSERVE THE SUN WITH THIS DEVICE! OBSERVING THE SUN – EVEN FOR A MOMENT – WILL CAUSE INSTANT AND IRREVERSIBLE DAMAGE TO YOUR EYE OR EVEN BLINDNESS. - Page 3 Parts Overview 1. 70 mm Telescope 2. Optical Tub Assembly (OTA) 3. Red Dot Viewfinder Available Downloads Visit: 4. Focuser www.esmanuals.com 5. Diagonal 6. Focus Wheel 7. Panhandle Alt-Azimuth Mount 8. 1.25” 20 mm & 10 mm Kellner Eyepieces 9. Smartphone Adapter 10.
- Page 4 Assembly: 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. • Open the tripod on a stable surface until the tripod spreaders are fully extended. •...
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Page 5: Troubleshooting Guide
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. - Page 6 Using The Smartphone Adapter: SUPERVISION BY ADULTS Read and follow the instructions, safety rules and first aid information. The Smartphone Adapter will allow you to connect almost any “smart” device to an eyepiece. To use the adapter, place it directly onto the selected eyepiece and secure it by tightening the set screw until snug.
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Page 7: Important Safety Information
Using The Solar Filter SUPERVISION BY ADULTS Read and follow the instructions, safety rules and first aid information. WARNING: Never attempt to look at the Sun with this telescope without the included solar filter properly installed. The solar filter must be mounted in front of the lens. Observing the sun – even for a moment - without the proper solar filter installed will cause instant and irreversible damage to your eye or even blindness. -
Page 8: Observing Tips
Observing Tips: Star hopping Star hopping is a technique used by amateur astronomers to navigate the night sky. By using easily recognizable constellations and asterisms as a guide, an observer can locate stars and other objects. For example, Polaris, which is Merak Dubhe commonly referred to as The... - Page 9 Pleiades Star Cluster(M45): Right ascension: 03: 47.0 (hours: minutes) Declination: +24: 07 (degrees: minutes) Distance: Approximately 444 light years The Pleiades Star Cluster is a group of brilliant blue stars located in the Taurus Constellation. Also known as Messier 45 or “Seven Sisters”, this open star cluster consists of more than 1,000 confirmed stars, although an average of only six are visible to the unaided eye.
- Page 10 Types Of Telescopes: Focuser Light Focuser Primary Mirror Secondary Mirror (Objective) Light Light Focuser Primary Mirror Secondary Mirror (Objective) Light Reflector A reflector telescope uses mirrors to gather and focus light. Light enters the telescope through its open Light front end and travels to the concave primary mirror at the back. From there the light is reflected back up Primary Mirror the tube to a flat secondary mirror, which sits at a 45°...
- Page 11 Telescope Terms to Know: Focal Length Objective Lens Eyepiece Eyepiece (mm) Focuser Aperture (mm) Diagonal Focal Point Focal Length Telescope (mm) Focal Length Eyepiece Eyepiece (mm) Focuser Focal Point Aperture Primary Mirror Secondary (mm) (Objective) Mirror Focal Length Telescope (mm) Aperture: This figure, which is usually expressed in millimeters, is the diameter of a telescope’s light-gathering surface (objective lens in a refractor or primary mirror in a reflector).
- Page 12 Aperture 102mm Eyepiece Focal Length 20mm Telescope Focal Length Magnification: 1000mm The magnification corresponds to the difference between observation with the naked eye and observation through a magnifying device like a telescope. If a telescope configuration has a magnification of 30x, then an object viewed through the telescope will appear 30 times larger than it would with the naked eye.
- Page 13 Eyepiece Lens Short Eye Relief Distance Long Eye Relief Distance Exit Pupil (mm) Eyepiece Lens Eyepiece Lens Eyepiece Lens Eye Relief Eye relief is all about a comfortable viewing experience because it is the distance at which you need to position your eye from the eyepiece’s outermost surface to enjoy the full field of view.
- Page 14 ©2023 National Geographic Partners LLC. All rights reserved. NATIONAL GEOGRAPHIC and Yellow Border Design are trademarks of the National Geographic Society, used under license. ©2023 Explore Scientific, LLC 1010 S. 48th Street, Springdale AR 72762. All rights reserved. Made in China.
Need help?
Do you have a question about the SRT70MM and is the answer not in the manual?
Questions and answers
Missing Kellner 20 mm eyepiece, Kellner 10 mm eyepiece, solar filter, so not able to view
Replacement options for the missing Kellner 20 mm eyepiece, Kellner 10 mm eyepiece, and solar filter for the National Geographic SRT70MM include:
- Eyepieces: You can replace the Kellner 20 mm and 10 mm eyepieces with standard 1.25-inch Kellner eyepieces. These are commonly available and compatible with the SRT70MM telescope.
- Solar Filter: Use a certified solar filter that fits securely over the front aperture of the SRT70MM telescope. Ensure the replacement filter is the correct size and can be firmly attached without damage or gaps.
Always verify compatibility and proper fit before use.
This answer is automatically generated
the lens is stuck inside, my son I think put it in the wrong direction
We didn’t receive a paper manual - should I send you the serial number ? I purchased it from Sam’s club
qr code for app
Where is the activation QR code to be able to use the recommended app from the app store