General Warnings; Parts Overview - Discovery 40mm Mode D'emploi

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.

Parts overview

1. Focus wheel
2. Zenith mirror (diagonal)
3. Eyepieces (12.5 mm, 20 mm)
4. Telescope (Telescope tube)
5. Tube opening
6. Objective lens
Assembly
You should take some time to decide where you would like to set up your telescope. Choose a stable
surface like a table. Snap the telescope tube into the U-shaped clamp on the top of the tripod head.
You can now place the zenith mirror (2) into the eyepiece holder and secure it with the small screw on
the connector (Fig. 1). Next, set the eyepiece (3) into the opening of the zenith mirror (2) (Fig. 1). 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 length (e.g. 20 mm) onto the zenith mirror. While
you'll get the lowest amount of magnification, it will be easier for you to view things.
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 12.5mm eyepiece. The magnification will increase from 20x to 32x.
Which eyepiece is right?
It is important that you always choose an eyepiece with the highest focal width at the beginning of your
observation. Afterward, 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:
Focal width of the telescope tube : Focal width of the eyepiece = Magnification
8
7. Locating screw for the vertical fine adjust-
ment (for moving upward and downward)
8. Locating screw for the vertical axis
(for turning to the right and left)
9. Tripod legs
10. Compass