Attaching the Finder Scope
HOW TO ALIGN THE FINDER SCOPE
OPTIONAL ACCESSORY CHART
1.Back out the adjustment screw
on the finder bracket to allow
passage of the finder scope.
(Make sure the adjustment
screws do not fall off the
bracket.)
2.Pull up the spring-loaded stud
on the bracket ring and pull it
so that the finder tube slides
into the bracket ring from its
eyepiece end.
Release the spring-loaded
stud at the position that the
wide groove on the finder tube
is underneath the stud.
3.Tighten the two adjustment
screws so that the finder
scope is aligned as shown in
the figure.
4.Loosen the finder bracket
lock thumbscrew on the
telescope.
5.Attach the finder bracket as
shown in the figure, tighten
the finder bracket lock
thumbscrew securely.
Side the rubber O-ring onto the eyepiece end of the finder.
There are two grooves on the finder tube. Position the O-ring
on the narrow groove at the middle of the finder tube.
Be sure to align the finder scope with the telescope before you start observing.
1. Choose a conspicuous target in the distance and place the target
in the center of the field of view of the telescope. (In the
illustration, a distant tower is brought into the center of the field of
view of the telescope.)
2. Next, look through the finder scope. You should probably find the
same target somewhere within the finder’s field of view. (The
finder scope has crosshairs.)
3. Align the optical axis (field of view) of the finder scope with the
optical axis (field of view) of the telescope. Adjust the finder
scope by loosening or tightening the adjustment screws A and B
until the target is in the same position, in the center of the
crosshairs. (In the illustration, the top of the tower is in the center
of the crosshairs.)
Finder Bracket
Spring-loaded
Spring-loaded
Spring-loaded
Spring-loaded
Spring-loaded
Spring-loaded
Adjustment
Screws
O-ring
Groove (Narrow)
Groove
(Wide)
Finder Scope
Adjustment
Screws
Viewing object in the center
of the teles field of view
Viewing object in the center
of the teles field of view
Field of view of the Finder Scope
Field of View of the
Finder Scope
Adjustment
Screw B
Adjustment
Screw A
Eyepiece
(31.7mm)
Eyepiece
(31.7mm)
Flip Mirror Diagonal
(Supplied)
50.8mm Visual Back
(Supplied)
Focus Knob
Draw tube friction adjustment screw [lower]
Finder Bracket
Look Screw
Finder Bracket
Look Screw
1
1
3
2
2
3
4
5
The telescope does not come with the eyepiece as standard
accessory unless you purchased a package.
Magnification of the Telescope
Visual Configuration
Focusing the Telescope
When using an eyepiece with short focal length (small
number in millimeters), the image will be dim and the range
of sharp focus will be small.
The image will be harder to see so begin with an eyepiece
with long focal length (low magnification).
Dividing the focal length of the telescope by the focal length
of the eyepiece gives the magnification.
Look into the eyepiece. The image will likely be out of
focus at first. Turn the focus knob slowly clockwise or
counterclockwise to find a point where the image in the
field of view of the eyepiece becomes sharpest.
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