Orion 9534, 9530 User Manual

INSTRUCTION MANUAL

Orion® ED Triplet

Carbon Fiber

Apochromatic Refractors

ED80T CF #9534

ED102T CF #9530

Providing Exceptional Consumer Optical Products Since 1975

OrionTelescopes.com

Customer Support [phone] • E-mail: [e-mail]

Corporate Offices [phone] • 89 Hangar Way, Watsonville, CA 95076

© 2011 Orion Telescopes & Binoculars

IN 427 Rev. A 08/11

2" Accessory
thumbscrew

Fine focus
knob

Dovetail base
for finder

Focuser
rotation lock
thumbscrew

Dew shield lock
thumbscrew
(not shown)

Dew shield
(retracted)

2" Accessory
thumbscrew

Fine
focus
knob

Course
focus
knob

Focuser lock
thumbscrew

1/4"-20
Mounting block

Figure 1.1. The 80mm ED80T CF Apochromatic Refractor optical tube.

Focuser rotation
lock thumbscrew

Tube rings

Dew shield lock
thumbscrew

Dew shield
(retracted)

Course
focus
knob

Mounting
plate

Figure 1.2. The 102mm ED80T CF Apochromatic Refractor optical tube.

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Congratulations on your purchase of an Orion ED
Triplet Carbon Fiber Refractor. Your telescope has

been designed with high quality precision optics
and excellent mechanical construction. The dual­speed (11:1) Crayford focuser will make getting
sharp images a breeze and reduce image shift
to almost zero. The three element objective lens
offers excellent color correction. These instructions
will help you set up and use your telescope.

Parts List

ED80T CF

Optical tube assembly

Threaded metal objective cap

1.25" eyepiece adapter

5mm hex key

Hard carrying case

ED102T CF

Optical tube assembly

Threaded metal objective cap

1.25" eyepiece adapter

Tube rings

Dovetail mounting plate

4mm hex key

Getting Started

The ED Triplet Carbon Fiber (ED T CF) refractors come fully
assembled from the factory. The telescope’s optics have been
assembled and collimated at the factory, so you should not
have to make any adjustments to them.

Please keep the original shipping box. In the unlikely event
you need to ship the telescope back to Orion for warranty
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.

Functions and Features

The ED T CF refractors have several features designed to
maximize the use and enjoyment of your telescope. When you
have become familiar with all of the functions of your ED T CF
refractor, you will be ready to begin using your new telescope
under the night sky!

Retractable Dew Shield

All ED T CF refractors feature a retractable dew shield (Figure

1.1-1.2) which allows the telescope to become more compact
for storage. The dew shield’s primary purpose is to prevent

Focuser
tension
setscrew

Focuser lock
thumbscrew

Figure 2. Locate the focuser tension set screw to change the

tension for heavier loads.

dew (water condensation) from forming on the lens during
cold and humid nights. The dew shield is also useful for reduc­ing glare under unwanted outside lights. To extend the dew
shield, remove the optical tube dust cover by unthreading it
counter clockwise, then loosen the dew shield lock thumb­screw. Pull the dew shield outward until it stops and retighten
the dew shield lock thumbscrew.

Dual-Speed Crayford Focuser

The ED T CF refractors come equipped with dual-speed
Crayford focuser (2" for the ED80T CF and 3" for the
ED102CF). The Crayford design allows for smooth, precise
focusing without the image shift that rack-and-pinion designs
experience.

For quick focusing of your ED T CF refractor, the two larger
silver focus knobs will provide a coarse focus. For more pre­cise focusing, as needed for applications such as critical high
power planetary observing and digital imaging, the smaller
black focus knob (Figure 1.1-1.2) offers fine focus adjust­ment. The fine focus knob rotates eleven times to one single
rotation of the coarse focus knobs, making an 11:1 ratio for
extremely precise focusing.

If you find that the focus adjustment is too hard to turn or if the
drawtube slips under the weight of your eyepiece or camera,
you can make adjustments to the focuser tension by using the
focuser tension set screw located on the bottom side of the
focuser (Figure 2). Make adjustments to this set screw until
the focuser motion feels smooth and holds in place when you
have obtained focus. It may be necessary to make adjustments
when the weight of your accessories change significantly.

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