Bresser NATIONAL GEOGRAPHIC 60/700 Instrucciones De Uso página 14

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 observa-
tions.
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.
i 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 posi-
tion 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.
14
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:
700 mm ÷ 20 mm
700 mm ÷ 12.5 mm
700 mm ÷ 4 mm
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 the 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 the 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 clamp-
ing 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 smart-
phones 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.
= 35X
= 56X
= 175X