BRESSER National Geographic TELESCOPES with AZ Mount Instruction Manual

Geographic TELESCOPES with AZ Mount
Instruction Manual

National Geographic TELESCOPES with AZ Mount

CAUTION:
Never attempt to observe the sun with this telescope.
Make sure children do not attempt to observe the sun with the telescope.
Observing the sun directly, even for a short time, may cause blindness.
Packing materials, like plastic bags and rubber bands, should be kept out of the reach of children.
Downloads:

• Astronomie Software/Astronomy software
• Mondkarte/Moon map
• Bedienungsanleitung/Instruction Manual

http://www.bresser.de/download/NG_AZ

|
---|---
|

General Information

About This Instruction Manual
Please read the safety instructions in this manual carefully. To avoid damage to the unit and the risk of injury, only use this product as described in the manual. Keep the   nstruction manual handy so that you can easily look up information on all the functions.
CAREFUL
** You will find this symbol before every section of text that deals with the risk of minor to severe injuries  resulting from improper use.
! ATTENTION
You will find this symbol in front of every section of text which deals with the risk of damage to property or the environment.
Intended Use
This product is intended only for private use. It was developed for the magnified display of things in nature.
General Warning**

RISK OF BLINDNESS
Never use this device to look directly at the sun or in the direct proximity of the sun. Doing so may result in a risk of blindness.
CHOKING HAZARD
Children should only use the device under adult supervision. Keep packaging material, like plastic bags and rubber bands, out of the reach of children, as they pose a choking hazard.
FIRE RISK
Do not place the device, particularly the lenses, in direct sunlight. The concentration of light could cause a  fire.
ATTENTION
Do not disassemble the device. In the event of a defect, please contact your dealer. The dealer will contact the Service Centre  and can send the device in to be repaired, if ecessary.
Do not expose the device to high temperatures.
Privacy Protection

This device is intended only for private use. Please heed the privacy of other people. Do not use the  device to look into apartments, for example.
Accessories may vary depending on the model.
Parts (No. 1-3)

1. Telescope tube
2.Finder scope or LED finder scope
3.Adjusting screws (finder scopes only)
4.Barrel opening
5.Objective
6.Eyepiece connection tube
7.Focus wheel
8.Screws (main tube)
9.Mount
10. Accessory tray
11.Adjusting screws (tripod)| 12.Fastening screws (tray)
13.Tripod legs
14.Fastening screws (finder scope)
15.Screws (tripod head)
16.Tripod head
17.Vertical fine adjustment
18.Eyepieces
19.Diagonal mirror
20.Erecting lens
21.Barlow lens
22.Mountings (accessory tray)
23.Smartphone holder
---|---

Part I Construction

1. General/Location
   These instructions detail the assembly and use of refracting and reflecting telescopes with alt-azimuthal mountings. Parts of these instructions contain differing instructions for the differing telescope models.
   Before you begin construction, choose a suitable location for your telescope. It is best to build this appliance in a place where you have a clear view of the skies, a stable footing and sufficient space around you.
   Before beginning construction, remove all the parts from the packaging, and, using the diagram, check to make sure no parts are missing.
   ! NOTE
   Important: Only secure screws finger tight. Do not overtighten screws.

2. Tripod legs
   First pull the centre of the three legs (13) out to the desired length. Then screw the fastening screws (11) into the legs and tighten them (No. 5).

3. Mounting and tripod
   Securely fasten the mount (9) and tripod together. Insert the mount into the tripod head (16), and push the screws (15) with washers through the drilled holes in the tripod head and the mount fasteners (No. 6). Add a second washer and a butterfly nut to each screw, and tighten the nuts to permanently affix the mount to the tripod.
   ! NOTE: Make sure the fastening devices (22) for the accessories tray on the tripod legs face inward.
   HINT: Place a small spirit level on the accessories tray to help you level your telescope during set up.

4. Accessories tray
   Model (No. 3a): Hold the accessories tray (10) against the fastening devices (22) on the tripod legs. Screw the three butterfly screws (12) from below through the fastening devices in the tray (No. 7a).
   Model (No. 3b): First unscrew the fastening screw for the accessory tray (12). Now insert the accessory tray (10) as seen in Fig. (No. 7b) Lastly screw the fastening screw (12) in the middle tightly, to secure the accessory tray (10).

5. Tube
   Hold the telescope’s main tube (1) as shown, in the middle of the alt-azimuth mount (9), and screw the screws (8) into the tube from both sides (No. 8).

6. Vertical fine adjustment
   To mount the vertical fine adjustment (17), first push the adjustment rod through holding device (X) on the mount (No. 9a). Then undo the screw (Y) for the adjustment rod, and insert it on the other end of the rod. Then tighten it in place (No. 9b).
   Important: Do not overtighten the vertical fine adjustment fasten­ ing screw. If you do, the main tube will not be vertically adjustable.
   Risk of blindness
   Never use this device to look directly at the sun or in the direct proximity of the sun. Doing so may result in a risk of blindness.

7. Assembling the finder scope/LED finder scope
   Note: The LED finder scope’s battery is safeguarded against dis­ charge with plastic foil when shipped. The foil must be removed before first use (No.1d).
   7.1. Finder scope installation (type I):
   Finder scope with threaded mounting.
   The finder scope and finder scope mount (No. 1a, 2) are included in the packaging. Remove the finder scope mount fastening screws on the main tube (No. 1a, 14), and set the mount onto the projecting screws on the telescope’s main tube. Carefully reinsert and tighten the screws previously removed to securely fasten the finder scope mount in place. Now, undo the finder scope adjusting screws (No. 1a, 3) — 3 or 6 of them depending on finder scope model — until the finder scope can easily be slid into its mount.
   Important: Make sure the finder scope lens points toward the main tube end (No. 1, 4).
   Retighten the screws equally to securely fasten the finder scope in place.
   7.2. Finder scope assembly (type II): LED finder scope with screw threading.
   To assemble the LED finder scope (No. 1b, 2), remove the LED finder scope fastening screws on the telescope’s main tube (No. 1c, 14). Set the LED finder scope onto the projecting screws on the telescope’s main tube. Then carefully reinsert and tighten the screws previously removed to securely fasten the LED finder scope in place.
   Important: Make sure the LED finder scope lens points towards the main tube end (No. 1, 4).
   7.3. Finder scope assembly (type III): LED finder scope with Quick Insert
   The LED finder scope (No. 1b, 2) and mount constitute a single unit. Slide the foot of the LED finder scope completely into the appropriate base on the telescope’s   ain  ube (No. 10, X). The finder scope mount will snap in place.
   Important: Make sure the LED finder scope lens points towards the main tube end (No. 1, 4).
   7.4. Finder scope assembly (type IV): Finder scope with Quick Insert
   The finder scope and its mount are preassembled and included in the packaging.
   Slide the finder scope mount foot entirely into the appropriate base on the telescope’s main tube (No. 10, X). The finder scope mount will snap in place.
   Important: Make sure the LED finder scope lens points towards the main tube end (No. 1, 4).
   There are two clamping screws (No. 1c, 14) and a spring-loaded counter screw on the finder scope mount. Evenly tighten the clamping screws until resistance is felt to securely fasten the finder scope in place.

8. Aligning the finder scope
   8.1 Aligning types I and IV (finder scopes)
   The finder scope must be adjusted before use; the finder scope and the telescope’s main tube must be aligned parallel to one another. Insert the eyepiece with the greatest focal length into the zenith mirror (12b, refracting telescopes only) or directly into the eyepiece supports (No. 13, reflecting telescopes only). Point the telescope at a significant object approximately 300 metres away (e.g. a house gable, church tower top or building facade) and adjust until the object appears in the centre of the field of vision (No. 15a, A).
   Look through the finder scope and align it by turning the 3 or 6 adjustment screws until the object is visible in the middle of the crosshairs. The image you previously saw through your telescope lens must be visible exactly in the centre of the finder scope (2) crosshairs in order to align properly (No. 15a, C).
   HINT
   ! Some finder scopes have no integrated optical image reversion. The image in these finder scopes will be upside down. This is not a fault.
   8.2 Aligning types II and III (LED finder scopes)
   The LED finder scope must be adjusted before use; the LED finder scope and the telescope tube must be aligned parallel to one another.
   Insert the eyepiece with the greatest focal length into the zenith mirror (No. 12b, refracting telescopes only) or directly into the eyepiece supports (No. 13, reflecting telescopes only). Point the telescope at a significant object approximately 300 metres away (e.g. a house gable, church tower top or building facade) and adjust until the object appears in the centre of the field of vision (No. 15b, A).
   Then turn the LED finder scope (2) on using the On/Off switch (No. 1b, Z). Select setting 2 for daytime or setting 1 for nighttime. Look through the LED finder scope   nd align it by turning the horizontal (No. 1b, X) and vertical (No. 1b, Y) adjustment screws until you see the red dot in the centre of the image (No. 15b, C). The finder  cope and  telescope are now aligned.

9. Protection caps
   In order to protect the inside of your telescope from dust and dirt, the tube opening is protected by a dust-protection cap (No. 11, X). To use the telescope, remove the cap from the opening.

10. Inserting the eyepiece
    10.1. On refracting telescopes
    Two eyepieces (18) and a star diagonal prism (19) are supplied with this telescope.
    The eyepieces allow you to decide which magnification you want your telescope to have.
    Before you insert the eyepiece and the star diagonal prism, you must remove the dust-protection cap from the eyepiece connection tube (6). Loosen the screw (No. 12a,) on the eyepiece connection tube and  insert the star diagonal prism. Retighten the screw (X) on the eyepiece connection tube.
    Release the clamping screw (No. 12b, X) to fasten the 20 mm eyepiece into the zenith mirror in the same way, and then retighten the clamping screw to secure the eyepiece in place. Make sure that the eyepiece is pointing vertically upward. If it is not, loosen the screw (No. 12a, X) on the eyepiece connection tube and rotate the star diagonal prism into the vertical position. Remove the dust cap from the main tube end.
    10.2. On reflecting telescopes
    Loosen the clamping screws on the eyepiece supports (6). Insert the 20 mm eyepiece (18) directly into the eyepiece supports. Hand tighten the clamping screws (No. 13, X). Remove the dust cap from the main tube end.

Part II Handling

1. Mount
Your telescope is equipped with an azimuth mount that makes it easy to adjust your telescope horizontally and vertically.
2. Setup
A dark place is essential for observations because light of all kinds (e.g. street lamps) disturb the visible details of the sky. If you leave a bright room at night, your eyes need approximately 20 minutes to reach full night adaptation, after which you can begin your observations. Don’t observe from enclosed areas, and put your telescope in location, with the accessories, at least 30 minutes before beginning observation, in order to guarantee a temperature balance. You should also make sure that the telescope is placed on stable and even ground.
3. Vertical and horizontal adjustment
3.1. Vertical adjustment
Loosen the fastening screw (No. 14a, X) and move the tube up or down. Once you find the right setting, hand tighten the screw to secure the adjustment. Minor changes can be carried out by slight turns of the adjustment wheel (No. 14b, Y). Before readjusting, loosen the fastening screw (No. 14a, X).
3.2. Horizontal adjustment
To move the telescope horizontally, loosen the fastening screw (No. 16, Z) and turn the device in the desired direction. Once you’ve reached the desired position, hand tighten the fastening screw.
4. Observation
Aim the telescope at the object to be observed. Look through the finder scope or LED finder scope and centre the object in the middle of the viewing field (crosshairs or red dot) by horizontally and vertically adjusting the telescope.
Now look through the lens and you will see the magnified object. Turn the focusing wheel to sharpen the focus if necessary. You can also change the lens to achieve greater magnification.
HINT
Start each observation with a low-powered lens (20 mm).

5. Finding Stars
You may initially have problems orienting yourself in the sky, as stars and constellations are in constant movement and change their position depending on the season, date and time. The North Star is the sole exception. It is a fixed star and the starting point of all stellar maps. You can see some well-known stars and constellations on the map (No. 17) that are visible throughout the year. The arrangement of the stars is dependent on the date and time, however.
6. Accessories
Your telescope is supplied with a number of accessories (No. 2).
Depending on your telescope’s model, these accessories may include the following:
6.1. Eyepieces
Change eyepieces to change your telescope‘s magnification.
Formula for calculating magnification:
Focal length (Telescope) ÷ Focal length (Eyepiece) = Magnification
Examples:

6.2. Zenith mirror (refraction telescope only)
The zenith mirror (19) reverses the image you see and is therefore used only for celestial observation.
6.3. Erecting lens
To see a vertical image the right way up, an erecting lens (20) may be used.
Loosen the clamping screws (No. 22, X) and remove all accessories from the eyepiece supports (6). Insert the erecting lens (20) into the eyepiece supports, and hand tighten  he clamping screws. Then insert the eyepiece into the erecting lens opening, and tighten the clamping  screws (No. 22, Y).
6.4. Barlow lens
A Barlow lens (21) increases magnification.
6.4.1 Assembling and using refracting telescopes
If you use a refracting telescope, the Barlow lens should only be inserted into the zenith mirror (No. 12a, X). Remove the eyepiece from the zenith mirror and replace it with   he Barlow lens. Then insert the eyepiece with the greatest focal length and hand tighten the clamping screw to affix it in place (No. 21, Z).
6.4.2 Assembling and using reflecting telescopes
If you use a reflecting telescope, undo the clamping screws on the eyepiece supports (No. 21, X), and remove the eyepiece from those supports. Then insert the Barlow lens straight in the supports and hand tighten the clamping screws. Finally, insert the eyepiece with the greatest focal length into the Barlow lens, and then fasten it in place with the clamping screws (No. 21, Z).
6.5.1 Smartphone holder (23a) (Optional)
Insert the eyepiece (1) into the smartphone holder and tighten the screw (X) to the bracket firmly. Then set the smartphone holder with the eyepiece into the eyepiece connection (2) and tighten the clamping screws (Y) by hand firmly. Now start your smartphone camera app and press your smartphone on the plate. Make sure that it is properly secured. The camera should rest just above the eyepiece. Place the smartphone exactly over the eyepiece, so that the image is exactly centered on your display. It may be necessary to use the zoom function to fill out the whole screen of your smartphone. The suction cups must be dry, clean and free from all kinds of dust and dirt. We assume no responsibility for dropped and broken smartphones due to incorrect handling.

6.5.2 Smartphone-Adapter (23b) (Optional)
Open the flexible holder and put your smartphone in it. Close the holder and make sure your phone is properly secured. The camera must be positioned exactly above the eyepiece. Open the locking clip on the back of the holder and fit the eyepiece exactly onto your smartphone camera. Now retighten the locking clip and attach the smartphone adaptor to the eyepiece of your telescope. Now start the camera app. If the image is not yet centered on your display, loosen the locking clip slightly and readjust. It may be necessary to use the zoom function to fill the image on the display. A slight shading at the edges is possible. Remove the smartphone from the holder after use!
WARNING
Make sure that the smartphone can not slip out of the holder. Bresser GmbH assumes no liability for any damages caused by a dropped smartphone.
7.Dismantling
After an interesting and successful observation, it is recommended that you store the entire telescope in a dry, well-aired area. On some telescopes, the tripod and mount can easily be separated. The adjustments to the mount will remain intact. Don’t forget to put the dust-protection caps onto the tube opening and onto the eyepiece connection before storing. Also, you should stow all the eyepieces and optical accessories in their corresponding receptacles.
HINT
The erecting lens is not recommended for astronomical observations. Only use the diagonal mirror for astronomical observations. Use the  erecting lens to observe  andscapes.
Notes on Cleaning
Clean the eyepieces and lenses only with a soft, lint-free cloth, like a microfibre cloth. To avoid scratching the lenses, use only gentle pressure with the cleaning cloth. To remove more stubborn dirt, moisten the cleaning cloth with an eyeglass-cleaning solution, and wipe the lenses gently.
Protect the device from dust and moisture. After use, particularly in high humidity, let the device acclimatize for a short period of time, so that the residual moisture can dissipate before storing.

Part III Appendix

1. Possible Observation Targets
The following section details several interesting and easy-to-find celestial objects you may want to observe through your telescope. The pictures at the end of the manual  how  hat the objects will look like through your telescope’s eyepiece.
The Moon (No. 23)
The moon is Earth’s only natural satellite.
Declination: -05° 22′ (degrees : minutes)
Distance:  1,344 light years from Earth
Though it is more than 1,344 light years from Earth, the Orion Nebula (M42) is the brightest diffuse nebula in the sky. It is visible even with the naked eye and is a worthwhile object for telescopes of all types and sizes. The nebula consists of a gigantic cloud of hydrogen gas with a diameter of hundreds of light years.
Constellation Lyra: The Ring Nebula (M57) (No. 25)
Constellation Lyra:  18h 53 m (hours : minutes)
Declination:   +33° 02′  (degrees : minutes)
Distance: 2,412 light years from Earth
The famous Ring Nebula (M57) in the Lyra constellation is often viewed as the prototype of a planetary nebula. It is one of the magnificent features of the Northern Hemisphere’s summer sky. Recent studies have shown that it is probably comprised of a ring (torus) of brightly shining material that surrounds the central star (only visible with larger telescopes), and not a gas structure in the form of a sphere or an ellipse. If you were to look at the Ring Nebula from the side, it would look like the Dumbbell Nebula (M27). When viewed from Earth, we are looking directly at the pole of the nebula.
Constellation Vulpecula (Little Fox):
The Dumbbell Nebula (M27) (No. 26)
Right Ascension: 19h 59m(hours:minutes)
Declination: +22° 43′ (degrees : minutes)
Distance: 1,360 light years from Earth
The Dumbbell Nebula (M27) was the first planetary nebula ever discovered. On 12 July 1764, Charles Messier discovered this new and fascinating class of objects. We see this object almost directly from its equatorial plane. If we could see the Dumbbell Nebula from one of its poles, we would probably see the shape of a ring, something very similar to what we know as the Ring Nebula (M57). In reasonably good weather, we can see this object well, even with low magnification.

Troubleshooting

Adjust viewfinder scope  (See Part I, Section 6).
Despite using  diagonal mirror, the picture is  crooked.| The diagonal mirrorshould be vertical in  the eyepiece connection.

DISPOSAL
Dispose of the packaging materials properly, according to their type, such as paper or cardboard. Contact your local waste-disposal service or environmental authority for information on the proper disposal. Please take the current legal regulations into account when disposing of your device. You can get more information on the proper disposal from your local waste-disposal service or environmental authority.

EC Declaration of Conformity
If applicable for your product:  Bresser GmbH has issued a “Declaration of Conformity” in accordance with applicable guidelines and corresponding standards. The full text  the EU declaration of conformity is available at the following internet address: www.bresser.de/download
UKCA Declaration of Conformity
If applicable for your product:
Bresser GmbH has issued a „Declaration of Conformity“ in accordance with applicable guidelines and corresponding standards. The full text of the UKCA declaration of   onformityis available at the following internet address: www.bresser.de/download
Bresser UK Ltd.
Suite 3G, Eden House, Enterprise Way, Edenbridge, Kent
TN8 6Hf, Great Britain

WARRANTY & SERVICE

The regular guarantee period is 5 years and begins on the day of purchase. You can consult the full guarantee terms and details of our services at: ww.bresser.de/warranty_terms.
WHEN YOU SHOP WITH US, YOU HELP FURTHER THE WORK OF OUR SCIENTISTS, EXPLORERS, AND EDUCATORS AROUND THE WORLD.

To learn more, visit natgeo.com/info
© National Geographic Partners LLC. All rights reserved.
NATIONAL GEOGRAPHIC and Yellow Border Design are trademarks
of National Geographic Society, used under license.
Visit our website: www.nationalgeographic.com

References

• The domain name env.la is for sale
• Bresser | Startseite | Expand Your Horizon mit BRESSER
• index · powered by h5ai 0.26.1 (http://larsjung.de/h5ai/)
• index · powered by h5ai 0.26.1 (http://larsjung.de/h5ai/)
• National Geographic

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>