Deluxe Stargazer’s 7
Piece Filter Set
#5590
Your new Orion Stargazer’s 7-piece lter set will add versatil-
ity and viewing pleasure to your astronomy experience. This
set contains a variable polarizing lter, a SkyGlow Broadband
light-pollution lter, four color lters, and a plastic storage case.
Please read these instructions thoroughly for proper use and
care of the lters.
1. Attaching the Filters
Filters require a 1.25" telescope eyepiece that can accept thread-
ed lters. Any Orion 1.25" eyepiece will work. Simply thread the
lter into the eyepiece barrel until it is nger tight. You can “stack”
lters by threading another lter into the bottom of the rst. Use
the lters photographically by threading them into eyepieces used
in tele-extenders and universal camera adapters. Some camer-
as adapters and barlow lenses also have the proper threads to
accept lters directly.
2. SkyGlow Broadband Light-Pollution Filter
The SkyGlow Broadband lter is useful in areas of moderate light
pollution like nearby streetlights. It blocks the most common unde-
sirable light pollution, while passing other desirable wavelengths
such as Hydrogen Alpha, Hydrogen Beta, and Doubly Ionized
Oxygen. It is designed for both visual and photographic use.
The Importance of Dark Adaptation
Allowing your eyes to dark-adapt is the key to getting the most
from your SkyGlow lter. Allow your eyes to dark-adapt for about
20-30 minutes before you use the lter. Remember, the instant
you glance at a bright object like a street lamp or bright ash-
light bulb, your eyes lose their dark-adaptation. You have to wait
another 20-30 minutes for it to return. Locate your telescope away
from direct illumination by streetlights. Set up in the “shadows” of
buildings and other objects.
What You Will See
The SkyGlow lter improves the contrast between sky and object
but will not actually make the object brighter. Expect a very dark
sky background and a somewhat dimmer but higher-contrast
image. The lter performs best on emission and planetary nebu-
las like the Orion and Owl nebulas in winter, and the Lagoon and
Dumbell nebulas in summer. Try these objects for your rst uses
of the lter. The SkyGlow lter has considerably less effect on gal-
axies and stars.
3. Variable Polarizing Filter
The variable polarizing lter reduces the amount of light entering
your eyepiece from your telescope. You can dim the view when
observing a bright object, such as the Moon or a planet (transmis-
sion: 40% to 1%). The variable polarizing Filter will not change the
color of the object being viewed and will prevent eye fatigue and
loss of night vision.
IN 203 Rev B 02/09
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Copyright © 2021 Orion Telescopes & Binoculars. All Rights Reserved. No part of this product instruction or any of its contents
may be reproduced, copied, modied or adapted, without the prior written consent of Orion Telescopes & Binoculars.
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