ORION TELESCOPES & BINOCULARS 5525 User manual

IN 357 Rev. B 05/11
Orion 2" Multiple Filter Wheel
#5525
Congratulations on your purchase of a quality Orion acces-
sory. The Orion Multiple Filter Wheel allows use of up to
four 2" filters without the time-consuming and sometimes
frustrating process of removing an eyepiece or imaging
system every time a different filter is needed. With its inno-
vative design and compatibility with all 2" Orion filters, the
Orion Multiple Filter Wheel lets you dial in the details of
virtually any celestial object with a simple turn of the wheel.
It’s so easy!
Parts List
1 Filter Wheel Assembly
1 2" nosepiece
1 Camera adapter
1 Lock ring
1 Hex key
Filter Installation
To install your 2" filters into the Multiple Filter Wheel you
will need to partially disassemble the filter wheel. Use the
supplied hex key to unthread the four socket-head screws
of the front (non-labeled) panel of the filter wheel assembly
(Figure 2). Be sure to place the screws in a safe place so
they do not become lost or damaged. Once all four screws
have been removed, gently separate the front plate from
the filter wheel, but be careful so the internal filter tray does
not fall out of the assembly. Carefully remove the tray by
grasping the central plastic hub and pulling gently. Now you
can install the 2" filters of your choice into the hub simply
by threading them into the rear (unlabeled) side of the filter
tray (Figure 3). You may wish to note the number designa-
tion of each installed filter for convenient reference during
use (Figure 4). You may find it useful to leave one of the
four threaded filter locations empty, providing an unfiltered
option for viewing or imaging. Once you have installed all
the filters you wish to use, carefully place the filter 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 open-
ing is aligned with the opening of the front plate. Complete
the installation by reattaching the rear plate of the filter
wheel assembly with the socket-head screws.
Attaching a Camera to the Filter Wheel
The Multiple Filter Wheel is intended for astro-imaging
with a camera body, be it a SLR camera, CCD, or CMOS
device. To attach a SLR camera to the filter wheel, use the
included T-thread ring and a T-ring built for your SLR model.
Attach the side of the T-thread ring with fewer threads 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 5).
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 2" nosepiece, remove it to expose the
T-threads. Now simply thread the imager onto the T-thread
ring, and then thread the ring onto the rear (labeled) plate
of the filter wheel assembly (Figure 6).
Figure 1. The Multiple Filter Wheel
Filter wheel
assembly Lock ring
2" nosepiece Camera
adapter
Hex key
Figure 2. Partial disassembly of the filter wheel.
Front panel
Hex key
Figure 3. Installing 2" filters into the central hub.
Filter tray2" filters
Customer Support [phone]
E-mail: [email protected]
Corporate Offices [phone]
89 Hangar Way, Watsonville, CA 95076
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Providing Exceptional Consumer Optical Products Since 1975

2
You can lock your camera or digital imager in a preferred
position by using the locking ring. Once you have posi-
tioned your camera or imager, rotate the knurled locking
ring counter clockwise until it locks the camera or imager
into place.
Attaching the Filter Wheel to a telescope
Now that you have installed your 2" filters into the wheel
assembly, it is time to attach the filter wheel to your tele-
scope.
Using the 2" nosepiece
If your telescope features a 2" focuser, adapter, or diago-
nal the easiest way to attach the Multiple Filter Wheel is
by using the included 2" nosepiece. Thread the nosepiece
onto the front plate of the wheel assembly. Now simply
insert the nosepiece into your telescopes’ 2" focuser or
accessory and secure by tightening the thumbscrew.
Selecting Filters
The Orion Multiple Filter Wheel features a helpful number
system that allows you to quickly place the filter of your
choice into the light path. Simply note the reference num-
ber (Figure 4) of each filter during installation, then rotate
the knurled wheel until the desired number is displayed in
the small notch in the filter wheel housing.
When using the Multiple Filter Wheel, you may find it useful
to leave one of the five threaded filter locations empty, as it
provides an unfiltered 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.
Care and Storage
Feel free to leave your 2" filters installed in the wheel dur-
ing storage. To avoid excessive dust buildup, be sure to
attach all dust caps prior to storing, or use a foam-lined
accessory case.
The foam-lined boxes your Multiple Filter Wheel and acces-
sories arrive in also acts as a convenient storage spot.
Simply unthread the 2" nosepiece from the filter wheel and
place the wheel and nosepiece in the die-cut foam. If you
have the 2" eyepiece adapter installed, unthread it and
replace with the T-thread ring. Now you can safely store
your filter wheel without worrying about dust build-up on
your filters.
Figure 4. Filter tray with 4 filters installed.
Reference
numbers
Figure 5. Attaching the camera adapter.
Figure 6. The Multiple Filter Wheel with digital imager
attached via T-threads.
Digital
imager
Camera
adapter Filter wheel
assembly
2" nosepiece
2" filters
One-Year Limited Warranty
This Orion 2" Multiple Filter Wheel is warranted against defects in materials or workmanship for a period of one year from
the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion
Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective,
provided it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076. If the product is not
registered, proof of purchase (such as a copy of the original invoice) is required.
This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or modified, nor does it
apply to normal wear and tear. This warranty gives you specific legal rights, and you may also have other rights, which vary
from state to state. For further warranty service information, contact: Customer Service Department, Orion Telescopes &
Binoculars, 89 Hangar Way, Watsonville, CA 95076; [phone].
2" nosepiece
Filter wheel
assembly
to camera
T-ring or
imager
Knurled
lock ring
Camera adapter
© 2011 Orion Telescopes & Binoculars