Discovery Spark Travel Telescopes User Manual

Spark Travel Telescopes
User Manual

Spark Travel Telescopes

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1. Diagonal mirror
2. Barlow lens
3. Eyepiece

DISCOVERY SPARK TRAVEL TELESCOPES

CAUTION! Never look directly at the Sun — even for an instant — through your telescope or finderscope without a professionally made solar filter that completely covers the front of the instrument, or permanent eye damage may result. To avoid damage to the internal parts of your telescope, make sure the front end of the finderscope is covered with aluminum foil or another non- transparent material. Children should use the telescope under adult supervision only.
Discovery Spark Travel telescopes installed on simple alt-azimuth mounts make a wonderful present for beginning astronomers of all ages. With these models, you can explore craters on the Moon, observe details on surfaces of different planets, as well as enjoy the views of bright deep-sky objects. These instructions will help you set up, properly use, and care for your telescope. Please read them thoroughly before getting started.
All parts of the telescope will arrive in one box. Be careful when unpacking it. We recommend keeping the original shipping containers. In the event that the telescope needs to be shipped to another location, having the proper shipping containers will help ensure that your telescope survives the journey intact. Be sure to check the box carefully, as some parts are small. All screws should be tightened securely to eliminate flexing and wobbling, but be careful not to overtighten them, as that may strip the threads. During assembly (and anytime, for that matter), do not touch the surfaces of the optical elements with your fingers. The optical surfaces have delicate coatings on them that can easily be damaged if touched. Never remove lenses or mirrors from their housing, or the product warranty will be null and void.

Tripod assembly

• Slowly loosen the tripod locking knobs and gently pull out the lower section of each tripod leg. Tighten the clamps to hold the legs in place (except for Discovery Spark Travel 50) (fig. 2).
• Spread the tripod legs apart to stand the tripod upright.
• Adjust the height of each tripod leg until the tripod head is properly leveled. Note that the tripod legs may not be the same length when the mount is leveled (except for Discovery Spark Travel 50).
• Place the accessory tray on top of the bracket, and secure it with thumbscrews from underneath or secure the accessory tray with one screw in the middle of the tray (except for Discovery Spark Travel 50).

Mount assembly

Mount without a fork (fig. 3a):

• Remove the altitude lock knob from the mount head.
• Place the telescope optical tube on the altazimuth mount so that the hole in the optical tube lines up with the hole in the mount head.
• Insert the altitude lock knob through the mount head and optical tube. Make sure the hole is clear all the way through before tightening the knob. Secure the altitude lock knob.

Fork mount (fig. 3b):

• Remove the locking screw from the slow-motion control rod.
• Insert the rod into the hole on the side of the fork mount.
• Place the telescope tube between fork arms so that holes on the tube match the arm holes. Fasten the telescope tube to the mount with thumbscrews.
• Fasten the other end of the rod to the telescope tube by inserting the screw through shaft and tube holes and tightening it.

Optical accessories assembly

Your telescope can be equipped with additional accessories, such as eyepieces, diagonal mirror or prism, or a Barlow lens. The accessories should be installed in well-defined ordering.
Refractors (fig. 1a, 1b): Loosen the focuser thumbscrew. Insert the diagonal mirror into the focuser tube and retighten the thumbscrew to hold the diagonal mirror in place (fig. 5a). Then, insert the desired eyepiece into the diagonal mirror and secure it by retightening the thumbscrew. If a Barlow lens is needed, install it between the diagonal mirror and the eyepiece. You can use the erecting eyepiece to get a direct image.
Reflectors (fig. 1c): Loosen the focuser thumbscrew and take off the plastic cap from the focuser tube. Insert the selected eyepiece and secure it by retightening the thumbscrew (fig. 5b). If a Barlow lens is needed, install it between the focuser and the eyepiece.

Barlow lens

A Barlow lens increases the magnifying power of an eyepiece, while reducing the field of view. It expands the cone of the focused light before it reaches the focal point, so that the telescope’s focal length appears longer to the eyepiece. In addition to increasing magnification, the benefits of using a Barlow lens include improved eye relief, and reduced spherical aberration of the eyepiece. For this reason, a Barlow plus a lens often outperform a single lens producing the same magnification. And the best advantage is that a Barlow lens can potentially double the number of eyepieces in your collection.

Optical finderscope assembly and alignment

Unthread two screws in the back of the telescope tube. Place the finderscope base above the holes on the tube. Lock the finderscope base into position by tightening the screws (fig. 4).
Optical finderscopes are very useful accessories. When they are correctly aligned with the telescope, objects can be quickly located and brought to the center of the view. Turn the scope end in and out to adjust focus (fig. 7).
To align the finderscope, choose a distant object that is at least 550 yards (500 meters) away and point the telescope at the object. Adjust the telescope so that the object is in the center of the view in your eyepiece. Check the finderscope to see if the object is also centered on the crosshairs. Use three adjustment screws to center the finderscope crosshairs on the object.

Focusing

Slowly rotate the focus knobs one way or the other until the image in the eyepiece is sharp. The image usually has to be finely refocused over time due to small variations caused by temperature changes, flexures, etc. Refocusing is almost always necessary when you change an eyepiece, add or remove a Barlow lens (refractor 6a, reflector 6b).

How to start observing

Before you start exploring the Cosmos, you should learn to operate the telescope during the day. First, observe different terrestrial objects — houses, trees and many others!
Attention: the telescope should be used in a place protected from the wind. When you get to observing the Moon, planets and stars at night, remember to choose locations away from street lamps, car lights and window lights. Try to observe on nights when the stars shine bright and evenly.
Point the telescope at the desired object. Looking through the finderscope, slowly move the tube until the object is in the center. Now look through the eyepiece and you will see the image of the object magnified many times!

Specifications

| Spark Travel 50| Spark Travel 60| Spark Travel 76
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Optical design| refractor| Newtonian reflector
Optics material| optical glass with reflective coating
Aperture, mm| 50| 60| 76
Focal length, mm| 360| 700| 700
Highest practical power, x| 100| 120| 152
Focal ratio| f/7| f/11.6| f/9
Tube material| metal
Mount| azimuth (AZ)
Eyepiece barrel diameter| 0.965″| 1.25″
Tripod| aluminum, 350mm| aluminum, 600—1000mm
Accessory tray| –| +
Finderscope| –| 5×24, optical
Eyepieces| 6mm, 20mm| 4mm, 12.5mm, 20mm
Diagonal mirror| 90°| –
Barlow lens| –| 3x| 2x
Erecting eyepiece| 1.5x

The manufacturer reserves the right to make changes to the product range and specifications without prior notice.

Care and maintenance

• Never, under any circumstances, look directly at the Sun through this device without a special filter, or look at another bright source of light or at a laser, as it may cause PERMANENT RETINAL DAMAGE and may lead to BLINDNESS.

• Take the necessary precautions when using the device with children or others who have not read or who do not fully understand these instructions.

• Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center.

• Stop using the device if the lens fogs up. Do not wipe the lens! Remove moisture with a hair dryer or point the telescope downward until the moisture naturally evaporates.

• Protect the device from sudden impact and excessive mechanical force.

• Do not touch the optical surfaces with your fingers. Clean the lens surface with compressed air or a soft lens cleaning wipe. To clean the device exterior, use only the special cleaning wipes and special tools that are recommended for cleaning the optics.

• Store the device in a dry, cool place away from hazardous acids and other chemicals, away from heaters, open fire, and other sources of high temperatures.

• Replace the dust cap over the front end of the telescope whenever it is not in use. Always put eyepieces in protective cases and cover them with caps. This prevents dust or dirt from settling on the mirror or lens surfaces.

• Lubricate the mechanical components with metal and plastic connecting parts. Components to be lubricated:

  • Optical tube;
  • Fine mechanics (focuser rail, telescope optical tube microfocuser);
  • Mounting;
  • Worm-and-worm pairs, bearings, cogs, threaded mounting gears.
    Use all-purpose silicon-based greases with an operating temperature range of –60 … +180°С (–76 … +356°F).

• If a part of the device or battery is swallowed, seek medical attention immediately.

• Children should use the device under adult supervision only.

Levenhuk Warranty

Levenhuk products, except for their accessories, carry a 10-year warranty against defects in materials and workmanship. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions are met.
For further details please visit: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.
The original Levenhuk cleaning accessories

Levenhuk Cleaning Pen LP10

Removes dust with a brush The soft tip is treated with a special cleaning fluid that removes greasy stains Does not damage optical coatings of the lenses Leaves no smudges or stains

5 natural colors
Microscope
Discovery
Micro
Small and light microscopes with 3 objective lenses, 640x magnification and LED illumination. Amazing knowledge book “The Invisible World” insid

© 2022 Discovery or its subsidiaries and affiliates. Discovery and related logos are trademarks of Discovery or its subsidiaries and affiliates, used under license. All rights reserved.Discovery.com
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Levenhuk Inc. (USA): 928 E 124th Ave. Ste D, Tampa, FL 33612,
USA,+1-813-468-3001, contact_us@levenhuk.com.
Levenhuk Optics s.r.o. (Europe): V Chotejně 700/7, 102 00 Prague 102,
Czech Republic, +420 737-004-919,sales-info@levenhuk.cz.
Levenhuk® is a registered trademark of Levenhuk, Inc.
© 2006—2022 Levenhuk, Inc. All rights reserved.
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Documents / Resources

| Discovery Spark Travel Telescopes [pdf] User Manual
Spark Travel Telescopes, Spark Travel, Telescopes
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| Discovery Spark Travel Telescopes [pdf] User Manual
Spark Travel Telescopes, Spark Travel, Travel Telescopes, Spark Telescopes, Telescopes

References

• Levenhuk’s official website in USA
• Доживотна гаранция на Levenhuk – Официален уебсайт на Levenhuk в България
• Levenhuk Limited Warranty – Levenhuk’s official website in USA
• Doživotní záruka společnosti Levenhuk – Oficiální webové stránky Levenhuk pro Českou republiku
• Levenhuk Lebenslange Garantie – Die offizielle Website von Levenhuk in Deutschland
• Garantía internacional de por vida Levenhuk – Web oficial de Levenhuk en España
• Levenhuk Lifetime Warranty – Levenhuk’s official website in USA
• A Levenhuk élettartamra szóló szavatossága – A Levenhuk hivatalos magyarországi weboldala
• Gwarancja bezterminowa Levenhuk – Oficjalna witryna internetowa Levenhuk w Polsce
• Поддержка - Гарантийное обслуживание Левенгук - Levenhuk Russia

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