Bresser Junior 70/900 EL Instrucciones De Uso página 19

Finally, in the same way (by opening and clo-
sing the clamp screws) secure the 20-mm eye-
piece in the zenith mirror.
2@
j
Be sure that the entrance of the eyepiece (the
end you look into) is facing straight upwards.
This will make observation easier. Alternatively,
loosen the clamp screws (21) on the eyepiece
holder and turn the zenith mirror into this po-
sition.
7. Mounting and Adjusting the Finder
Slide the foot of the finder holder (24) comple-
tely into the finder holder base on the telescope
tube (Figure 10). The finder holder will snap into
place. Be sure that the objective lens on the fin-
der is pointing in the direction of the front tube
opening.
d
2#
2#
a
2$
1)
On the finder holder, there are adjusting screws
for the finder (3) (Figure 1): two clamp screws
(black) and one spring-loaded counter screw
(silver). The clamp screws (black) are to be
screwed (equally as far) in so that you can feel
some resistance; the finderscope is then secu-
re.
Before beginning an observation, it is absolutely
necessary that you align the finderscope – the
finderscope and the main telescope must point
to exactly the same position. Here is the pro-
cess for alignment:
Take the 20-mm eyepiece, set it into the zenith
mirror and aim the main telescope at an easy
to find, clearly defined earthbound object (Fi-
gure 11, e.g. church steeple, gable of a house).
The object should be at least 200-300 meters
away. Hone in on the object so that it is exactly
in the middle of the field of vision when you look
through the eyepiece.
1!
The image reproduced will be upright, but ro-
tated around its vertical axis (you will see a
mirror-image). In the finder, however, the repro-
duced image will be upright and its sides will
not be reversed, as above. Now turn one of the
two clamp screws (right/left) of the finderscope
while looking continuously through the finder.
Continue to turn until the finder's crosshairs are
exactly over the position that corresponds to
what you see when you look through the eyepie-
ce of the main telescope.
Focusing the finderscope:
Turn the front lens mount (23) one to two rota-
tions to the left. Now you can adjust the coun-
ter-ring (23a) by itself.
EN
19