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Objective lens
Focus lock
ring
Spring-loaded
tensioner
Figure 2a.
The 6x30 finder scope and bracket
getting started
The 130mm f/5 reflector comes nearly fully assembled from
the factory. Open the box and inspect the contents to make
sure all of the items in the parts list are present.
Please keep the original shipping box. In the unlikely event
you should need to ship the telescope back to Orion for war-
ranty repair service, you should use the original packaging.
The box also makes a very good container for storing the
telescope when it is not in use.
installing the Finder scope
To place the finder scope in the finder scope bracket (Figure
2a.), first unthread the two black nylon thumbscrews until
the screw ends are flush with the inside diameter of the
bracket. Place the O-ring that comes on the base of the
bracket over the body of the finder scope until it seats into
the slot on the middle of the finder scope. Slide the eye-
piece end (narrow end) of the finder scope into the end of
the bracket's cylinder opposite the adjustment screws while
pulling the chrome, spring-loaded tensioner on the bracket
with your fingers (Figure 2b.) Push the finder scope through
the bracket until the O-ring seats just inside the front open-
ing of the bracket's cylinder. Now, release the tensioner and
tighten the two black nylon screws a couple of turns each to
secure the finder scope in place. Secure the bracket to the
dovetail mount on the optical tube with the knurled thumb-
screw on the dovetail mount.
Mounting the telescope
The 130mm f/5 reflector can be easily mounted on altazimuth
mounts like the Orion VersaGo which utilize a dovetail holder.
Attach the included tube rings to the dovetail mounting plate
with the included hex head screws. Be sure to first place a
lock washer and then a flat washer onto each screw. Insert
the screws (with washers) through the holes in the plate
and thread them into the base of the tube rings (Figure 2c).
Tightening the screws requires a 10mm crescent wrench or
an adjustable crescent wrench. Place the optical tube into the
open rings. Close the rings, and use the tube ring clamping
knob on each tube ring to secure the telescope. The dovetail
Alignment
thumb screws
Eyepiece
Figure 2b.
mounting plate now connected to the 130mm reflector con-
nects to the VersaGo's dovetail holder. If you wish to alter
the focuser or finder scope position once the telescope is
mounted, simply loosen the tube ring clamping knobs by a
few turns each and gently rotate the telescope until the pre-
ferred focuser/finder scope position is achieved. Retighten the
clamping knobs when done.
The 130mm reflector can also be mounted on Orion equatorial
mounts using the dovetail mounting plate. Follow the previous
directions to couple the telescope to the mounting plate with
the tube rings. The mounting plate connects directly to the
equatorial mount's dovetail holder.
An equatorial mount is desirable for astronomical viewing
as it allows easy manual and/or motorized tracking of celes-
tial objects as the Earth rotates. Setting circles on equato-
rial mounts also enable you to locate objects by their celestial
coordinates (right ascension and declination), which can be
found in many observing books and star atlases.
Figure 2c.
Inserting the finder scope into the finder scope bracket.
Tube ring
clamping knobs
Flat washer
Lock washer
Hex head screws
Attaching the dovetail mounting plate.
Dovetail
mounting
plate
3
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