BRESSER Night Explorer 80-400 Telescope with Backpack Instruction Manual

BRESSER Night Explorer 80-400 Telescope with Backpack

Imprint

Bresser GmbH
Gutenbergstr. 2
46414 Rhede
Germany
www.bresser.de
For any warranty claims or service inquiries, please refer to the information on “Warranty” and “Service” in this documentation. We ask for your understanding that unsolicited returns cannot be processed. Errors and technical changes excepted. © 2022 Bresser GmbH All rights reserved. The reproduction of this documentation – even in extracts – in any form (e.g. photocopy, print, etc.) as well as the use and distribution by means of electronic systems (e.g. image file, website, etc.) without the prior written permission of the manufacturer is prohibited. The designations and brand names of the respective companies used in this documentation are generally protected by trade, trademark and/or patent law in Germany, the European Union and/or other countries.

Validity note

This documentation is valid for the products with the following article numbers:
9621800
Manual version: 0922
Manual designation:
Manual_9621800_NightExplorer-80-400_de-en_BRESSER_v092022a Always provide information when requesting service.

Features

• Achromatic optics by Fraunhofer
• Coated objective lenses
• Solide metal tube
• Height adjustable photo tripod with handle
• Dew shield

About this Instruction Manual

NOTICE
These operating instructions are to be considered a component of the device. Read the safety instructions and the instruction manual carefully before using this device. Keep this instruction manual in a safe place for future reference. If the device is sold or passed on, the instruction manual must be passed on to any subsequent owner/user of the product.

Intended Use

• This device is not intended for use by persons (including children) with impaired physical, sensory or mental abilities, or for lack of experience and/or knowledge, unless they are supervised by or have received instructions from a person responsible for their safety on how to use this device.
• This device is for personal use only.
• It was developed for an magnified representation of nature observations.

General safety instructions

DANGER
Risk of blindness!
Never look directly at, or near the sun with this device. There is a RISK OF BLINDNESS!

DANGER
Danger of suffocation!
Improper use of this product may result in suffocation, especially for children. It is therefore imperative that you observe the following safety information.

• Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a danger of choking!
• This product contains small parts that can be swallowed by children! Choking hazard!

CAUTION
Fire hazard!
Improper use of this product may result in fire. It is essential that you observe the following safety information in order to avoid fires.

• Do not place the device, particularly the lenses, in direct sunlight. The concentration of light could cause a fire.

NOTICE
Danger of material damage!
Improper handling may result in damage to the unit and/or accessories. Therefore, use the device only in accordance with the following safety information.

• Do not disassemble the device! In the event of a defect, please contact the after-sales support number listed below.
• Do not subject the device to excessive vibrations.
• Do not expose the components to direct sunlight for a longer time.
• Do not expose the device to high temperatures and protect it from water and high humidity.

NOTICE
Privacy Protection
Respect the privacy of your fellow human beings – do not look into flats with this device, for example!

Parts overview & scope of delivery

Illustration 1: All parts of the telescope

1. Dew protection cap
2. Objective lens (Inside)
3. Optical Tubes
4. Eyepiece holder
5. Fixing screw (Eyepiece connection)
6. Dust cap (Eyepiece connection)
7. Eyepieces
8. Fixation screw (Diagonal mirror)
9. Diagonal mirror
10. Focus wheel
11. Tripod head plate
12. Tripod head with tilting mechanism
13. Locking lever (tripod head plate)
14. Fixing screw (tripod head tilt 90°)
15. Fixing screw (tripod head plate)
16. Fixing spigot
17. Threaded screw (tripod head plate)
18. Height adjustable tripod rod
19. Fixing screw (horizontal adjustment)
20. Manual guidance (vertical adjustment)
21. Tripod head
22. Circular level
23. Fixing screw (height adjustment)
24. Crank (height adjustment)
25. Tripod center rod
26. Push button
27. Hook
28. Tripod foot
29. Tripod leg lower part
30. Lower locking clip
31. Tripod leg center section
32. Upper locking clip
33. Tripod cross
34. Tripod leg upper part
35. Mounting base
36. Dust cap (lens)
37. Mounting ring
38. Fixing screws (mounting ring)
39. Bracket
40. Guide rail
41. Fixing screw (bracket)
42. Velcro fasteners
43. Carrying strap
44. Zipper (back)

Scope of delivery:
Optical tube (A), tripod (B), 3 eyepieces: SR-4mm, H-12.5mm, H-20mm (C), diagonal mirror (D), smartphone holder (E), backpack (F), user manual

Site location

Choose a dark location to avoid interference of dark adaption throughout lights. A flat and stable surface is recommended. Do not observe from closed rooms. Approx. 30 minutes before starting an observation, position the telescope and the accessories on the desired location to allow temperature compensation.

Setting up the tripod

1. Press the push button on the tripod center rod and at the same time slowly pull the tripod legs outwards until the tripod cross is fully extended.
2. Open the upper locking clips one after the other and pull out the tripod leg middle parts completely.
3. Open the lower locking clips one after the other and extend the tripod leg lower parts to the desired height.
4. Make sure that the air bubble of the circular level is centered in the circle to ensure a level stand. If necessary, readjust the lower parts of the tripod leg.
5. Close the locking clips.
6. Loosen the fixing screw for the height adjustment.
7. Extend the tripod head to the desired height using the crank.
8. Hand-tighten the fixing screw for the height adjustment.

Moving the tripod head

NOTICE
Tighten locking screws/rings only by hand.
Tighten locking screws/rings only by hand. Rings and threads can break when overtighten them!

1. Loosen the fixing screw for horizontal movement to move the tripod head to the right or to the left.
2. Tighten the fixing screw by hand to set the tripod in current horizontal position.
3. Loosen the fixation for vertical movement by turning the handle counterclockwise. Tilt the tripod head up and down.
4. Turn the handle clockwise to to set the tripod head in current vertical position.
5. Loosen the fixing screw for the tripod tilt plate to tilt the the attached optics sidewards for a viewing position up to 90 degrees.
6. Tilt the tilt plate to the right and tighten the fixing screw by hand to set the tilt plate in current position.

Mounting the OTA on the tripod

NOTICE
Save the OTA when installing it.
Save the OTA always with one hand when installing it! It can cause serious damage if the device is falling down.

1. Push the locking lever on the tripod head to the FREE position and simultaneously remove the tripod head plate from the holder.
2. Screw the threaded screw of the tripod head plate into the thread of the mounting base of the optical tube to fix the tripod head plate to the optical tube. Make sure that the fixing pin engages in the corresponding hole.
3. Push the locking lever on the tripod head to the FREE position and insert the optical tube with the mounted tripod head plate into the holder. Make sure that the objective lens points in the opposite direction to the guide handle.
4. Push the locking lever into the LOCK position.

Installing accessories

Illustration 2: Attach accessories to the optical tube

• Z1 Eyepiece
• Z2 Fixation screw (Diagonal mirror)
• Z3 Diagonal mirror
• Z4 Eyepiece holder
• Z5 Fixing screw (Eyepiece connection)

1. Loosen fixing screw.
2. Insert the desired accessory into the eyepiece holder.
3. Tighten the fixing screw by hand that the accessory ist fixed in a secure way.

Using eyepieces

The magnification depends on the focal length of the telescope and the eyepiece. By changing the eyepieces, the magnification can be varied.
The formula for calculating the magnification:
Focal length telescope: Focal length eyepiece = Magnification
Example calculation:
400 mm: 20 mm = 20x
Three eyepieces are included with this telescope. Always start observation with a high focal length eyepiece (= low magnification)

Using the diagonal mirror

The diagonal mirror is inserted into the eyepiece holder in front of the eyepiece. This allows a more comfortable view. It causes an image inversion to an upright but laterally inverted image.

Smartphone holder installation

Illustration 3: Mounting the smartphone holder

• S1 Mounting ring
• S2 Fixing screw (mounting ring)
• S3 Guide rail
• S4 Smartphone*
• S5 Clamping bolt
• S6 Fixing screw (guide rail)

CAUTION! When inserting and subsequently using the smartphone holder, always ensure that the smartphone* inserted is secured in the holder in such a way that it cannot slip or fall! The manufacturer accepts no responsibility for damage to the smartphone caused by improper or incorrect handling!

1. Insert an eyepiece into the diagonal mirror on the telescope and fix it in place.
2. Put the smartphone holder with the mounting ring (S1) over the inserted eyepiece and screw it tight with the fixing screw (S2).
3. Push the clamp bolts (S5) of the holder apart and clamp the smartphone* between them. Position the smartphone lens exactly in the center of the eyepiece so that the image can be seen exactly in the center of the display. If necessary, use the zoom function to adjust the image to fill the display.
4. Launch the Camera app on the smartphone. In the Camera app*, the image captured through the eyepiece is displayed.
5. If necessary, correct the position of the smartphone* until the desired image section is displayed. To do this, loosen the fixing screw (S6) on the underside of the holder and move the smartphone up or down on the rail in the holder.
6. Use the shutter button of the camera app to take a picture of the observation object.

NOTICE! In order to be able to create an image that is as shake-free as possible, we recommend using a remote control (e.g. via Bluetooth) for the shutter release process. not included with the purchase.

Before starting an observation

The tube opening and the eyepiece holder are protected by fust protection caps. Remove the protection caps before starting the observation. Replace cap when storing the it.

Observation

DANGER
Risk of blindness!
Never look directly at, or near the sun with this device. There is a RISK OF BLINDNESS!

1. Roughly align the telescope with the desired object (e.g. the moon) and look through the eyepiece.
2. By adjusting the telescope horizontally and vertically, bring the object into the center of the field of view.
3. The object is magnified through the eyepiece.
4. If necessary, adjust the focus with the focus wheel.
5. By changing from a high focal length eyepiece to a low focal length eyepiece, the magnification can be increased.

Attach the tripod to the backpack

llustration 4: Attaching the tripod to the backpack for transport.

For transport, the tripod can be attached to the backpack using the Velcro fasteners on the side of the backpack:

1. Extend/push in tripod legs about halfway.
2. Open the Velcro straps on the backpack and wrap them around two of the three tripod legs.
3. Close the Velcro fasteners again. When shouldering the backpack, now the tripod hangs on the backpack and can be transported comfortably.

Troubleshooting

Problem/Error Possible solution

• No image Remove protective caps;
• Select eyepiece with lower magnification
• Blurred picture Adjusting the focus using the focus wheel
• No focusing possible Wait for temperature equalization
• Bad picture Do not observe through glass panes
• “Crooked” image despite diagonal mirror Aligning the eyepiece socket of the diagonal mirror vertically

Cleaning and maintenance

NOTICE
Never take the objective out of its socket and do not modify its adjustment screws.
It is not possible to reinstall the objective in an accurate manner without specialist knowledge. A significant reduction of optical performance is the result. In this case, the warranty claims become void!

NOTICE
Do not use aggressive cleaning agents!
Do not use photographic lens cleaners and no perfume-impregnated, dyed or lotion-soaked cloths to clean optical surfaces. By the use the optics can take permanent damage!

• Protect the device from dust and moisture!
• Avoid fingerprints and similar contamination of the optical surfaces.
• The residual moisture must be completely degraded before use.
• Do not clean the optics too often! A little dust on the front of the lens or mirror surface will not significantly reduce the image quality. This is no reason for cleaning.
• If necessary, carefully remove dust on the front of the lens or mirror surface with a camel hair brush or blow it away with compressed air.
• Remove organic soiling (e.g. fingerprints) with a cleaning liquid (mixing ratio: three parts distilled water, one part isopropyl alcohol). Add a small drop of biodegradable dishwashing detergent per half liter of cleaning liquid. Use soft, white face tissues and carefully clean surfaces with short, radial wiping movements. Replace the tissues as often as possible.
• If the air humidity is high, the glass may fog up and moisture may form. This is not a defect! In this case, allow the device to acclimatize at room temperature for some time so that the residual humidity can be reduced.
• Once the residual moisture has been completely removed, fit the dust caps and store the telescope in a closed container* in a dry, mold-free place. It is recommended to store accessories in a closed container with desiccant.
• (Depending on the model, a case may already be included in the scope of delivery).

Disposal

Dispose of the packaging materials according to its type. Information on proper disposal can be obtained from the municipal waste disposal service provider or environmental agency.

Warranty

The period of warranty is 5 years, beginning on the day of purchase. Please keep the cash receipt as evidence of purchase. Devices that become defective during the warranty period can be returned to the dealer where the device was bought. The repaired device or a new one will then be returned to you. In the case of defects which occur after the end of the warranty period, the devices can also be returned. However, repairs which become necessary after the end of the warranty period will be subject to a service fee.

Please contact the service centre first for any questions regarding the product or claims, preferably by e-mail.
E-Mail: service@bresseruk.com
Telephone: +44 1342 837 098
BRESSER UK Ltd.
Suite 3G, Eden House
Enterprise Way
Edenbridge, Kent TN8 6HF
Great Britain
Number charged at local rates in the UK (the amount you will be charged per phone call will depend on the tariff of your phone provider); calls from abroad will involve higher costs

Visit our website via the following QR Code or web link to find further information on this product or the available translations of these instructions.

w.bresser.de/download/9621800

References

• disponibles.IT
• IBERIA.COM en United States - the best prices for Iberia flights - Iberia USA
• Bresser | Startseite | Expand Your Horizon mit BRESSER

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