Orion 5520 User manual

Orion®1.25" Multiple Filter Wheel
#5520
Congratulations on your purchase of a quality Orion accessory. The
Orion Multiple Filter Wheel allows use of up to ve 1.25" lters without
the time-consuming and sometimes frustrating process of removing
an eyepiece or imaging system every time a different lter is needed.
With its innovative design and compatibility with 1.25" Orion lters,
the Orion Multiple Filter Wheel lets you dial in the details of virtually
any celestial object with a simple turn of the wheel.
Parts List
1 Filter wheel assembly
1 1.25" nosepiece
1 Camera adapter
1 1.25" eyepiece adapter
1 Hex key
Filter Installation
Use the supplied hex key to unthread the four socket head screws of
the front (non-labeled) panel of the lter wheel assembly (Figure 2).
Be sure to place the screws in a safe place so they do not become
lost. Once all four screws have been removed, gently separate the
front plate from the lter wheel. Install the 1.25" lters of your choice
into the tray simply by threading them into the lter tray. You may
wish to note the number designation of each installed lter for conve-
nient reference during use. You may nd it useful to leave one of the
ve threaded lter locations empty, providing an unltered option for
viewing or imaging. Once you have installed all the lters you wish to
use, carefully place the lter tray back into the wheel assembly. Be
sure the small plastic tab fully registers with the central hole of the
wheel assembly so that it “clicks” into place. Position the rear plate
so that the opening is aligned with the opening of the front plate.
Complete installation by reattaching the rear plate of the lter wheel
assembly with the socket head screws.
If you are installing an individual lter or swapping one lter for anoth-
er, you can avoid partial disassembly of the lter wheel. To install
an individual lter, unthread the 1.25" nosepiece from the assembly
to expose the internal lter tray. Rotate the tray so the desired lter
location is shown. Install the 1.25" lter by placing it on the lter tray
and rotating it clockwise with your ngertips. Orion 1.25" lters fea-
ture a knurled rim which will prove helpful for this type of installation.
Be careful not to touch the actual lter surface. Note: individual lter
installation without disassembly may not be convenient for all users,
especially those with large ngers!
Attaching a Camera to the Filter Wheel
The Multiple Filter Wheel can be extremely useful for astro-imaging
with a camera body, be it a SLR camera, CCD, or CMOS device. To
attach a SLR camera to the lter wheel, use the included camera
adapter and an optional T-ring for your SLR model. Attach the side of
the camera adapter without the knurled lock ring to the rear (labeled)
plate of the wheel assembly by rotating it clockwise until tight. Now
thread your SLR camera T-ring onto the exposed T-threads (Figure 3).
Figure 1. The Multiple Filter Wheel
Filter wheel assembly 1.25" eyepiece adapter
1.25" nosepiece
Camera adapter
Hex key
Figure 2. Partial disassembly of the lter wheel.
Front panel Hex key
Notch
Figure 3. Attaching the camera adapter.
Filter wheel
assembly
to
camera
T-ring or
imager
Knurled
lock ring
Camera adapter
1.25" nosepiece
Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA
Toll Free USA & Canada: [phone]
International: [phone]
Customer Support: [email protected]
Copyright © 2021 Orion Telescopes & Binoculars.All Rights Reserved. No part of this product instruction or any of its contents
may be reproduced, copied, modied or adapted, without the prior written consent of Orion Telescopes & Binoculars.
AN EMPLOYEE-OWNED COMPANY
IN 313 Rev D 10/10

Note: The filter wheel arrives with the camera adapter pre-
installed.
If you are using a digital imager that features T-threads, you can
attach it directly to the Multiple Filter Wheel. If your digital imager
has a 1.25" nosepiece, remove it to expose the T-threads. Now sim-
ply thread the imager onto the camera adapter, and then thread the
adapter onto the rear (labeled) plate of the lter wheel assembly
(Figure 4a).
You can lock your camera or digital imager in a preferred position by
using the camera adapter's locking ring. Once you have positioned
your camera or imager, rotate the knurled locking ring counter clock-
wise until it locks the camera or imager into place.
Attaching the Filter Wheel to a Telescope
Now that you have installed your 1.25" lters into the wheel assembly,
it is time to attach the lter wheel to your telescope.
Using the 1.25" nosepiece
If your telescope features a 1.25” focuser, adapter, or diagonal
the easiest way to attach the Multiple Filter Wheel is by using the
included 1.25" nosepiece. Thread the nosepiece onto the front plate
of the wheel assembly. Now simply insert the nosepiece into your
telescopes’ 1.25" focuser or accessory and secure by tightening the
thumbscrew.
Using T-threads
Some Orion telescopes feature focus adapters with exterior
T-threads. If you are using such a telescope, you can attach the
Multiple Filter Wheel directly to the T-threads without using the 1.25"
nosepiece. Carefully attach the wheel to the T-threads by rotating the
entire assembly clockwise until tight.
Attaching an Eyepiece to the Filter Wheel
For visual use, you will need to attach the 1.25" eyepiece adapter to
the Multiple Filter Wheel. To do this, thread the 1.25" adapter onto the
back (labeled) plate of the wheel assembly. Once the adapter is com-
pletely attached, unscrew the knurled thumbscrew until it is ush with
the inside surface of the adapter and insert a 1.25" eyepiece. Secure
the eyepiece by tightening the thumbscrew (Figure 4b).
Use
The Orion Multiple Filter Wheel features a helpful number system that
allows you to quickly place the lter of your choice into the light path.
Simply note the reference number of each lter during installation,
then rotate the knurled wheel until the desired number is displayed in
the small notch in the lter wheel housing (Figure 1).
When using the Multiple Filter Wheel, you may nd it useful to leave
one of the ve threaded lter locations empty, as it provides an unl-
tered option for viewing or imaging.
Keep in mind that use of the Multiple Filter Wheel requires 20mm
of inward focus travel. This will not be a problem for most telescope
designs, but could be a problem for Newtonian reectors.
Care and Storage
Feel free to leave your 1.25" lters installed in the wheel during stor-
age. To avoid excessive dust buildup, be sure to attach the dustcaps
prior to storing, and use a foam-lined accessory case.
The foam-lined box your Multiple Filter Wheel arrives in also acts as
a convenient storage container. Simply unthread the 1.25" nosepiece
from the lter wheel and place the wheel and nosepiece in the die-
cut foam. If you have the 1.25" eyepiece adapter installed, unthread
it and replace with the T-thread ring. Now you can safely store your
lter wheel without worrying about dust build-up on your lters.
Figure 4a. The Multiple Filter Wheel with digital imager attached via
T-threads.
Figure 4b. The Multiple Filter Wheel with 1.25" eyepiece attached.
Digital
imager
Camera adapter
Filter wheel
assembly
1.25"
nosepiece
1.25"
nosepiece
1.25" eyepiece
Thumbscrew
1.25" eyepiece adapter
Filter wheel
assembly
One-Year Limited Warranty
This Orion product is warranted against defects in materials or
workmanship for a period of one year from the date of purchase.
This warranty is for the benet of the original retail purchaser
only. During this warranty period Orion Telescopes & Binoculars
will repair or replace, at Orion’s option, any warranted instru-
ment that proves to be defective, provided it is returned postage
paid. Proof of purchase (such as a copy of the original receipt) is
required. This warranty is only valid in the country of purchase.
This warranty does not apply if, in Orion’s judgment, the instru-
ment has been abused, mishandled, or modied, nor does it
apply to normal wear and tear. This warranty gives you specic
legal rights. It is not intended to remove or restrict your other
legal rights under applicable local consumer law; your state or
national statutory consumer rights governing the sale of con-
sumer goods remain fully applicable.
For further warranty information, please visit www.
OrionTelescopes.com/warranty.
AN EMPLOYEE-OWNED COMPANY
Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA
Toll Free USA & Canada: [phone]
International: [phone]
Customer Support: [email protected]
Copyright © 2021 Orion Telescopes & Binoculars.All Rights
Reserved. No part of this product instruction or any of its contents
may be reproduced, copied, modied or adapted, without the prior
written consent of Orion Telescopes & Binoculars.