6
Using the telescope for visual observation
Inserting the eyepiece
•
Loosen the two thumbscrews
(1)
on the end of the focuser tube.
•
Insert the 2" diagonal
(2)
into the
focus tube and re-tighten the
thumbscrews
(1)
to hold the
diagonal in place.
•
Loosen the diagonal's screw
(3)
.
•
For 2" eyepieces
(4a)
, insert it
into the diagonal and secure it by
re-tightening the thumbscrew
(3)
.
•
For 1.25" eyepieces first insert
the 2" to 1.25" adapter
(4b)
into
the diagonal and secure by re-
tightening the screw
(3)
. Loosen
the adapter's screw
(5)
and insert
the 1.25" eyepiece
(6)
inside the
adapter ring, then secure it by re-
tightening the screw
(5)
.
Focusing
•
Make sure the locking lever below the focuser
(1)
is
unlocked (position as shown in picture).
•
Slowly turn the focus knobs
(2)
one way or the other,
until the image in the eyepiece is nearly sharp.
•
To finely focus the image turn the 1:11 knob one way or
the other until the image is perfectly sharp
(3)
.
•
Lock the screw below the focuser
(1)
if a heavy load is
attached (pull the lever at 90°).
The image usually has to be finely refocused over time, due
to small variations caused by temperature changes. This
often happens when the telescope has not yet reached
outside temperature.
Refocusing is almost always necessary when you change an
eyepiece.
When looking through a diagonal, the image
is inverted left to right, as an image in a
mirror. This is normal and has no incidence
for astronomical observations.
If you plan to do terrestrial observation often, like bird
watching, optional image-erecting devices such as the
Amici prism or the erected 90° diagonal may be the right
tool.
Your reseller will be glad to advise you about the best
optional part that can be used with your telescope.
