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a
b
c
Adjusting the Finder
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The magnification provided by an eyepiece
with the main telescope is often high and
its field of view is narrow. Trying to aim the
telescope at and locating a celestial body
directly through the telescope eyepiece
can be difficult. Furthermore, when using
a camera to take images of the stars the
star image can be difficult to see. Locating
a celestial object using a camera can be
increasingly difficult.
The finder is a low-magnification telescope
with a wide field of view. When properly
aligned with the main telescope, objects
centered in the finder should also be
centered in the telescope eyepiece or
camera image.
Adjusting the Finder Focus
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When looking at a distant object with the
finder, if the focus is not correct, the finder
focus can be adjusted as follows:
Loosen the focus locking ring.
1.
While looking at the distant object hold
2.
the finder eyepiece and turn it clockwise
and counter-clockwise to achieve proper
focus.
Tighten the focus locking ring in a
3.
position where the focus point is properly
achieved.
Lock Screw
Finder Adjusting Screw
Finder
Finder Eyepiece
Focus Locking Ring
Lock Nut
Finder Bracket
Adjusting the Finder Alignment
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Set up the telescope for visual use
1.
according to the system chart and attach
a lower power eyepiece. Then, select a
clearly visible distant object and center
it in the field of view. This is most easily
done during the daytime.
Exchange the lower power eyepiece for a
2.
higher power eyepiece, and again focus
on the distant object.
Looking through the finder, move the
3.
finder with the following procedure and
adjust it so the object is centered in on
the crosshair.
To adjust the finder, turn all lock nuts
4.
until they reach the head of the adjusting
screws.
Referring to the diagram, in order to
5.
move the crosshair in the direction of the
arrow, first loosen screw (a) and tighten
(push) the finder with screw (c). Next
loosen screw (b) and tighten the finder
with screw (c). This procedure will move
the crosshair in the desired direction. The
end of the finder will move in the opposite
direction and the object will move in the
direction of the small arrow. When the
finder is properly aligned, lock the finder
by tightening the lock nuts.
Crosshair
Telescope Field of View
Finder Field of View