BRESSER 9810500 Telescope with Backpack Instruction Manual
- June 1, 2024
- BRESSER
Table of Contents
BRESSER 9810500 Telescope with Backpack
Specifications
- Art. No.: 9810500
- Telescope Focal Length : 350 mm
- Maximum Magnification: Up to 116X
Product Usage Instructions
General Warnings
Never use the telescope to look directly at the sun or in its direct
proximity as it may result in a risk of blindness.
Parts Overview
- Focus wheel
- Eyepiece holder
- Zenith mirror (diagonal)
- Barlow Lens (2x)
- Eyepieces (6 mm, 10 mm)
- Telescope tube
Assembling the Telescope
-
1. Choose a suitable location with an unobstructed view of the sky and enough space around you. - Open the locking clips on the tripod legs and extend them downward.
- Attach the telescope tube to the tripod head.
Using Your Telescope
- Insert the eyepiece and Barlow lens if needed according to the desired magnification.
- Use the focus wheel to adjust the sharpness of the image.
- Locate a visible object at a distance and adjust the focus for a clear view.
Cleaning Instructions
Use a soft, lint-free cloth to clean the lenses and other optical surfaces.
Avoid using harsh chemicals or abrasive materials that may damage the optics.
Parts overview
- Focus wheel
- Eyepiece holder
- Zenith mirror (diagonal)
- Barlow Lens (2x)
- Eyepieces (6 mm, 10 mm)
- Telescope tube
- Objective lens
- Tube opening
- Dust protection cap
- Fixation screw for the Telescope tube
- Locating screw for the vertical axis (for turning to the right and left)
- Vertical fine adjustment (for moving upward and downward)
- Tripod legs
- Tripod leg locking clip
- Smartphone holder
- Backpack
- Moon filter
General Warnings
- 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 these materials pose a choking hazard.
- Risk of fire — Do not place the device, particularly the lenses, in direct sunlight. The concentration of light could cause a fire.
- 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 necessary.
- Do not expose the device to high temperatures.
- The device is intended only for private use. Please heed the privacy of other people. Do not use this device to look into apartments, for example.
How to assemble the telescope
Before you get started with the assembly, you should take some time to decide
where you would like to set up your telescope. It is important that you choose
a place from which you have an uninhibited view of the sky, where the floor is
hard and even, and where you have enough space around you so that you feel
comfortable. When you’ve found the ideal spot, you can begin the assembly.
Open the locking clips on the tripod legs (14). Then pull the lower parts of
the tripod legs (13) downward as far as they will go. Finally, close the
locking clips again (Abb. 1). You can change the height of the tri-pod at a
later time by making the tripod legs a bit shorter (again, ope-ning the
locking clips, adjusting the legs, closing the clips).
Connect the telescope tube (6) to the tripod head (Abb. 2). Use the Fixation screw for the Telescope tube (10) to firmly connect both parts.
How to insert an eyepiece
Take the lens cap off the eyepiece holder (2). You can now place the zenith mirror (3) into the eyepiece hol-der and secure it with the small screw on the connec-tor. Next, set the eyepiece (5) into the opening of the zenith mirror (3). Here too, there is a screw with which you can screw the eyepiece onto the zenith mirror. Note: First, put the eyepiece with the largest focal width (10 mm) onto the zenith mirror. While you’ll get the least amount of magnification, it will be easier for you to view things.
Barlow Lens
Optional: The Barlow lens can be mounted between the zenith mirror and the eyepiece to double the magnification.
Using your telescope
To move the scope up, down and side to side, grip the telescope and steadily
move the tube 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 will have to track the object as it journeys across the
night sky. For a closer look at an object, you can insert the 6 mm eyepiece.
The magnification will increase from 35x to 58x.
Which eyepiece is right?
It is important that you always choose an eyepiece (5) with the highest focal
width for the beginning of your observation. Afterwards, you can gradually
move to eyepieces with smaller focal widths. The focal width is indicated in
millimetres and is written on each eyepiece. In general, the following is
true: The larger the focal width of an eyepiece, the smaller the
magnification. There is a simple formula for calculating the magnification:
Focus wheel
Look through the telescope eyepiece (5) and hone in on a far away object that
you can see well (for in-stance, a church tower). Focus in on the object with
the focus knob (1).
Technical data
- Design: achromatic
- Focal length: 350 mm
- Objective diameter : 50 mm
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 ac-climatise for a short period of time, so that the residual moisture can dissipate before storing.
Smartphone holder (For eyepieces)
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.
Telescope ABC’s
What do the following terms mean?
Focal length:
Everything that magnifies an object via an optic (lens) has a certain focal
length. The focal length is the length of the path the light travels from the
surface of the lens to its focal point. The focal point is also refer-red to
as the focus. In focus, the image is clear. In the case of a telescope, the
focal length of the telescope tube and the eyepieces are combined.
Lens:
The lens turns the light that falls on it around in such a way so that the
light gives a clear image in the focal point after it has traveled a certain
distance (focal length).
Zenith mirror (diagonal) (3):
A mirror that deflects the ray of light 90 degrees. With a horizontal
telescope tube, this device deflects the light upwards so that you can
comfortably observe by looking downwards into the eyepiece. The image in a
diagonal mirror appears upright, but rotated around its vertical axis (mirror
image).
Barlow Lens (4):
The Barlow lens can be used to increase the focal width of a telescope.
Eyepiece 5
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 focal point
of a lens is captured and magnified still more. There is a simple formula for
calculating the magnification: Focal length of the telescope tube / Focal
length of the eyepiece = Magnification In a tele-scope, the magnification
depends on both the focal length of the telescope tube and the focal length of
the eyepiece. From this formula, we see that if you use an eyepiece with a
focal length of 10 mm and a telescope tube with a focal length of 350 mm, you
will get the following magnification: 350 mm / 10 mm = 35 times magnification
Magnification:
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. See also ‘Eyepiece’.
EC Declaration of Conformity
Bresser GmbH has issued a “Declaration of Conformity” in accordance with
applicable guidelines and corresponding standards. The full text of the EU
declaration of conformity is available at the following internet address:
www.bresser.de/download/9810500/CE/9810500_CE.pdf
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. Do not dispose of electronic
devices in the household garbage!
As per Directive 2012/19/EC of the European Parliament on waste electrical and
electronic equip-ment and its adaptation into German law, used electronic
devices must be collected separately and recycled in an environmentally
friendly manner. Empty, old batteries must be disposed of at battery collec-
tion points by the consumer. You can find out more information about the
disposal of devices or batteries produced after 6 January 2006 from your local
waste-disposal service or environmental authority.
In accordance with the regulations concerning batteries and rechargeable
batteries, disposing of them in normal household waste is explicitly
forbidden. Please make sure to dispose of your used batteries as required by
law — at a local collection point or in the retail market. Disposal in
domestic waste violates the Battery Directive.
Batteries that contain toxins are marked with a sign and a chemical symbol.
Warranty and Service
The regular warranty period is 2 years and begins on the day of purchase. To
benefit from an extended voluntary warranty period as stated on the gift box,
registration on our website is required. You can consult the full warranty
terms as well as information on extending the warranty period and details of
our services at
www.bresser.de/warranty_terms.
Contact
Bresser GmbH Gutenbergstraße 2 46414 Rhede · Germany www.bresser.de
FAQ
Q: Can I use this telescope to view the sun?
A: No, it is not safe to look directly at the sun or in its direct proximity
with this telescope to avoid the risk of blindness.
References
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