i n s t r u c t i o n M a n u a l
IN 389 Rev. A 03/10
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Orion
®
shorttube
™
80
Optical Tube Assembly
#9948
Providing Exceptional Consumer Optical Products Since 1975
OrionTelescopes.com
Figure 1.
The ShortTube 80 Optical Tube Assembly
Congratulations on your purchase of the Orion ShortTube 80
Optical Tube Assembly!
This fine-quality versatile instrument
can be used for a wide variety of applications. Compact,
portable, and easy to use, this telescope will provide many
hours of enjoyment for novice and experienced astronomers
alike.
The Short Tube 80 Optical Tube Assembly (OTA) arrives
from the factory fully assembled and collimated. No adjust-
ments should need to be made to the optics. Please keep
the original shipping box in the unlikely event you should
need to ship the telescope back to Orion for warranty repair
service. The box also makes a very good container for stor-
ing the telescope when it is not in use.
The Orion ShortTube 80 can be outfitted for nighttime star-
gazing, daytime terrestrial observation, as a guidescope for
astroimaging, or as a telephoto lens attached to an SLR/
DSLR camera body.
Attaching a Finder Scope
An Orion finder scope can be attached to the ShortTube 80
to provide a low power, wide field view helpful in aiming the
telescope. Your finder scope bracket can be mounted in the
dovetail shoe molded into the focuser assembly. Loosen the
finder scope lock knob and slide the dovetail foot of your
finder bracket in place. Secure it by re-tightening the lock
knob.
Dew shield
Dovetail shoe
for finder
Finder scope
lock knob
Focus
lock knob
Thumbscrew
T-thread
Focus knobs
Visual
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