Educational Insights 5306 User manual

®EI-5306
Ages 8+
Grades 3+
Developed in Southern California by Educational Insights.
© Educational Insights, Inc., Gardena, CA (U.S.A.). All rights reserved. Learning
Resources Ltd., King’s Lynn, Norfolk (U.K.). Please retain this information.
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1
Introduction ............................................................................................ 2
Getting Started........................................................................................ 2
Parts of Your Om ga R fl ctor .......................................................... 2
et’s ook at Your Omega Reflector ...................................................... 3
Assembly Diagram .................................................................................. 4
Assembling Your Telescope .................................................................... 5
The Finder Scope .................................................................................... 7
Installing Your Find r Scop .............................................................. 7
Aligning Your Find r Scop .............................................................. 7
Using Your Telescope .............................................................................. 8
Choosing an Ey pi c for Vi wing.................................................... 8
Using th Barlow L ns........................................................................ 8
Using Your T l scop for T rr strial Vi wing .................................. 9
Tips for T l scop Us ........................................................................ 9
Frequently Asked Questions .................................................................. 10
Observing the Night Sky ........................................................................ 10
Plan ts ................................................................................................10
Stars ....................................................................................................10
Th Moon ............................................................................................11
earn More About Astronomy ..............................................................12
Caring for Your Telescope ......................................................................12
Storag ................................................................................................12
Optics ..................................................................................................12
Warranty ..................................................................................................13
NOTE: Compon nt colors may vary from thos shown in th illustrations.
CAUTION:
Never look directly at the sun, with or without your telescope. Never aim your telescope
at the sun, or anywhere near the sun. Instant and irreversible eye damage can occur,
including blindness.
Do not let children use the telescope without adult supervision any time the sun is
above the horizon.
Table of Contents

Introduction
Your Om ga R fl ctor is a N wtonian r fl ctor t l scop . Light nt rs th op n nd of th tub and trav ls
down to th opposit nd wh r it strik s a sp cially curv d mirror, known as th primary mirror. Th
focus d imag is r fl ct d back up th tub to a small, flat mirror n ar th op n tub nd, call d th
s condary mirror. This s condary mirror r fl cts th focus d imag out through th sid of th t l scop
tub to th y pi c hold r wh r it is nlarg d for vi wing through th y pi c . Your t l scop will
nabl you to s many int r sting obj cts in th night sky, from th moon’s crat rs and Saturn’s rings to
galaxi s and n bula , as w ll as giving you an up-clos vi w of r markabl things h r on arth, from
animals to landforms. Th information in this guid will h lp you g t th most from your t l scop .
Getting Started
R mov all of th compon nts from th box. Using th list and pictur b low, id ntify and inv ntory ach
of th parts of your t l scop . It is r comm nd d that you k p your t l scop box for long-t rm storag ,
or should you v r n d to r turn th t l scop for s rvic .
Parts of Your Omega Reflector:
A. Find r scop with brack t
B. Acc ssory tray
C. 3x Barlow l ns
D. Imag r ctor
( r cting y pi c )
E. Ey pi c s (3)
F. Yok (and altazimuth mount)
G. Tripod support brack t
H. Tripod l g attachm nt
bolts and wing nuts (3)
I. Tripod l g
adjustm nt knobs (3)
J. Micro-adjustm nt altitud
control rod
K. Optical tub ass mbly
L. Tripod l gs (3)
32
1. Optical tube: Holds and prot cts th t l scop ’s mirrors.
2. Primary mirror: Gath rs light from a distant obj ct and focus s an imag back to a s condary mirror
which r dir cts th imag to th y pi c l ns for magnification.
3. Dust cap: Prot cts th mirrors from scratch s and dirt. Th dust cap has two parts, a small insid cap and
a larg r outsid cap.
4. Finder scope: A low-pow r d t l scop that you align to th main t l scop to mak it asi r to locat
distant obj cts.
5. Eyepiece: Brings th imag from th t l scop ’s s condary mirror to your y . Your t l scop com s with
thr y pi c s: on for low pow r, on for m dium pow r, and a third for high pow r.
6. Focuser: Turn th focusing knob to mak imag s cl ar r.
7. Micro-adjustment altitude control rod: Enabl s you to mak larg and small v rtical adjustm nts to th
position of th optical tub .
8. Yoke and altazimuth mount: Holds your t l scop and allows you to adjust your vi w up and down
(altitud ) and sid -to-sid (azimuth).
9. Tripod: Supports th t l scop and mount. Adjustm nt knobs allow you to chang th h ight of th
tripod and lock it into plac for comfortabl vi wing.
10. Accessory tray: Holds your y pi c s, Barlow l ns, and imag r ctor for asy acc ss.
Let’s Look at Your O ega Reflector
Familiariz yours lf with th parts of your t l scop and th ir us .
1
3
4
5
6
7
8
2
10
9
(inside)
ABC
D
E
FG
J
K
H
I

54
Asse bly Diagra Asse bling Your Telescope
Us th pictur of your t l scop ’s compon nts on pag 2, th Ass mbly Diagram on th opposit pag , and th
dir ctions b low to ass mbl your t l scop . You will also n d a Phillips scr wdriv r.
1. Ext nd th tripod l gs (L), and lock ach on at
th d sir d h ight with th suppli d tripod
adjustm nt knob (I). (S Figur 1.)
2. Conn ct all thr tripod l gs to th yok (F) with
th suppli d tripod l g attachm nt bolts,
wash rs, and wing nuts (H). (S Figur 2.) B
sur to fit th bolt into th sid of th tripod l g
with th h xagonal r c ss around th hol .
3. Fast n th tripod support brack t (G) to ach l g
using th includ d bolts and nuts that com
attach d to th nd of ach arm of th tripod
support brack t. First, r mov ach bolt and nut.
(S Figur 3.) Th n position on arm of th
tripod support brack t so that th hol s at th
nd of th arm lin up with th hol through
th attachm nt point on th tripod l gs. (S Figur 4.) Ins rt th bolt to attach th tripod support
brack t to th tripod l g and tight n th nut. R p at this proc dur with th oth r two l gs.
4. Fast n th acc ssory tray (B) to th tripod support brack t by placing th tray’s bolt into th thr ad d hol
and turning th tray clockwis until tight. (S Figur 5.)
F
B
A
K
H
J
G
I
E
Figur 1
Figur 4
Figur 2
Figur 3
L tt rs corr spond to compon nts list on pag 2
and ass mbly instructions on pag s 5-7.
Figur 5

76
5. Tight n all nuts and bolts firmly to provid a stabl mount for th optical tub ass mbly (K). On ach sid of
th optical tub th r is a round black m tal wash r. Each wash r has a larg scr w (altitud locking scr w) in
th c nt r and a small r scr w n ar th outsid dg . Loos n all th scr ws. Mount th optical tub ass mbly
in th yok . (S Figur 6.) Rotat ach wash r slowly whil g ntly tight ning th small scr w by turning it
clockwis with a Phillips (+) scr wdriv r. Wh n th wash r is corr ctly ori nt d, th small scr w will fit into a
hol b n ath th wash r. Tight n th small scr w firmly. Tight n th two altitud locking scr ws. R p at this
proc dur for th oth r sid . (Not : Som production mod ls may hav two small scr ws on ach sid of th
optical tub ass mbly. In this cas , tight n both scr ws firmly.)
6. Ins rt th smooth nd of th micro-adjustm nt altitud control rod into th chrom d hold r locat d on th sid
of th yok . (S Fig. 7). You may hav to loos n th larg plastic locking knob in ord r to ins rt th chrom d
rod. Onc th rod is ins rt d (with th nd with th hol facing th focusing ass mbly) tight n th larg
locking knob just nough to pr v nt th rod from falling out. Locat th chrom d post on th sid of th
t l scop tub n ar th focusing ass mbly. R mov th scr w from th post. Ins rt it through th hol in th
nd of th altitud control rod and into th post. Turn th scr w clockwis until it is tight.
7. Ins rt th 20mm y pi c into y pi c hold r. (S Figur 8.) Tight n th small chrom s t scr w to hold th
y pi c s cur ly in plac .
8. Follow th dir ctions on pag 7 to install and align your t l scop ’s find r scop before using your t l scop .
The Finder Scope
Th find r scop is a small t l scop that sits on your optical tub . It magnifi s obj cts fiv tim s and has a light
coll cting obj ctiv l ns that is 24mm in diam t r. Th vi wing fi ld of th find r scop is much wid r than that
of your t l scop so it is asi r to locat a particular obj ct with th find r scop . Always use your finder scope
to locate the object you want to view first. The finder scope should be aligned with the main optical tube
before you begin using the telescope. By prop rly aligning your find r scop with your t l scop , it will b
asi r for you to pr cis ly aim your t l scop at obj cts you want to study.
Installing Your Finder Scope
1. Your find r scop (A) com s alr ady install d in its mounting brack t. This brack t attach s to your optical tub
with th two knurl d thumbscr ws locat d n ar th t l scop ’s focus r. (If th find r scop tub is wrapp d in
plastic, loos n th thr positioning scr ws on th brack t until you can slid th find r scop out. R mov th
plastic and r ins rt th find r scop in th sam dir ction that it was position d b for . Tight n th thr
positioning scr ws.)
2. R mov th two knurl d thumbscr ws from th t l scop ’s main tub . (S Figur 9.)
3. Position th find r scop and brack t so that th two slots in th brack t lin up with th xpos d hol s in th
optical tub and th larg r l ns of th find r scop fac s in th dir ction of th op n nd of your t l scop .
R plac th knurl d thumbscr ws and tight n s cur ly. (S Figur 10.) Do not ov r tight n th m as you may
crack th brack t.
Aligning Your Finder Scope
To work ff ctiv ly, your find r scop must b align d with your t l scop . This is most asily don during th
daytim with your low pow r (20mm) y pi c in plac .
1. R mov th dust cap from th front of th t l scop . Look through your t l scop to locat an asily
r cognizabl obj ct as far away as you can—at l ast 300 f t away. Loos n th altitud and azimuth controls and
th altitud control rod. Turn th optical tub on both its horizontal and v rtical ax s until th obj ct is in th
c nt r of th vi wing fi ld. Us th focusing knob to mak th imag sharp.
2. Tight n th altitud and azimuth lock knobs and th altitud control rod so that th t l scop is lock d in
position.
3. Look through th find r scop . If th obj ct is not visibl or c nt r d in th find r scop , r l as on of th thr
positioning scr ws holding th find r scop and car fully r position th find r scop until th obj ct is c nt r d
within th v rtical and horizontal lin s, call d “crosshairs.”
4. Occasionally ch ck th vi w through th t l scop to mak sur it hasn’t mov d. Wh n th obj ct is c nt r d in
both th find r scop and th t l scop , tight n th positioning scr ws firmly holding th find r scop in plac .
5. You may n d to r p at this proc dur to nsur a p rf ct alignm nt. Wh n succ ssfully compl t d, th find r
scop and th t l scop will “s ” th sam vi w, nabling you to locat and study obj cts quickly and asily.
Note: Wh n you look through th find r scop , you will s an upsid down and backwards (l ft/right
r v rs d) imag . This is normal for all astronomical t l scop s.
Figur 6
Figur 7
Figur 8
Figur 10Figur 9
Note: Your t l scop ’s primary mirror is a pr cision ground and polish d compon nt that
is pr cis ly position d at on nd of th optical tub . It is pr -align d for maximum
p rformanc at th factory and should not n d any adjustm nt. N v r adjust or r mov
any of th scr ws locat d at this nd of th t l scop .

98
Using Your Telescope
1. For b st r sults, tak your t l scop outsid . Vi wing obj cts through clos d or op n windows is not
r comm nd d. Your vi w can b distort d by r fl ctions in th glass of a clos d window or by air curr nts of
diff ring t mp ratur s passing through an op n window.
2. L t your t l scop adjust to th outsid t mp ratur . Your t l scop will p rform much b tt r if th
t mp ratur of th mirrors, y pi c l ns s, and th air insid th tub is th sam as th outsid t mp ratur .
In xtr m t mp ratur s, it may tak up to 30 minut s to acclimat your t l scop .
3. It is r comm nd d to start vi wing with your low st pow r (20mm) y pi c in plac b caus it giv s you th
wid st angl and bright st, sharp st vi ws.
4. R mov th dust cap. Th dust cap consists of two pi c s—a small, r movabl c nt r pi c and th larg main
cap. Both pi c s should b r mov d.
5. Point th op n nd of th t l scop toward th subj ct you wish to obs rv . To adjust th t l scop
horizontally, loos n th azimuth locking knob. To adjust th t l scop v rtically in larg incr m nts, loos n th
altitud control locking knob on th altitud control rod. For small v rtical adjustm nts, gradually loos n or
tight n th knurl d knob on th rod.
6. Mov th t l scop in th dir ction of th obj ct you wish to vi w. Look through th find r scop and pan th
t l scop until th obj ct app ars c nt r d in th find r scop ’s fi ld of vi w (th portion of th sky that you
can vi w through a t l scop ). Onc it is in your fi ld of vi w, tight n th altitud and azimuth control knobs.
7. Look through th y pi c . If you hav prop rly align d your find r scop and your t l scop , th obj ct will
app ar in th c nt r of your t l scop . Turn th focusing knob until th imag is sharp.
Choosing an Eyepiece for Viewing
Your Om ga R fl ctor com s with thr diff r nt y pi c s—a 20mm y pi c , a 12.5mm y pi c , and a 7mm
y pi c . Th y pi c s off r you a rang of vi wing pow rs or magnifications. Ey pi c s ar m asur d and
lab l d in “mm” (millim t rs). Th low st pow r (35x) y pi c is th on with th high st numb r in millim t rs
(20mm). Th high st pow r (100x) y pi c is th on with th low st numb r in millim t rs (7mm). Th 12.5mm
is your m dium pow r (approximat ly 60x) y pi c .
As a rul , always start with th low st pow r y pi c , gradually switching to th high r pow rs only aft r you
hav locat d an obj ct. A low r magnification and a wid r fi ld of vi w ar r comm nd d for obs rving galaxi s
and n bula . High r magnification pow rs should b us d for highly d tail d obs rvations of th moon, Jupit r,
Saturn, or any obj ct that is quit bright.
Using the Barlow ens
Your t l scop com s with a 3x Barlow l ns. This acc ssory tripl s th
magnification of your y pi c s. Wh n us d with th Barlow l ns, your 20mm
y pi c will magnify obj cts approximat ly 100x, your 12.5 mm y pi c
approximat ly 180x, and your 7mm y pi c 300x. In vi wing situations wh r
v ry high magnifying pow rs ar d sir d, ins rt th Barlow l ns b tw n th
y pi c and th focusing tub . (S Figur 11.)
Using Your Telescope for Terrestrial Viewing
Your t l scop d liv rs gr at vi ws of mountains, vall ys, and many oth r f atur s of th world around us.
You can also us it to study animals and birds at a distanc . To vi w t rr strial (land) subj cts, your t l scop
com s with an imag r ctor, or r cting y pi c . This sp cial compon nt ori nts obj cts so that you can
vi w th m as you would with your nak d y . Follow th s dir ctions to us th imag r ctor:
1. Loos n th small scr w in th focusing tub and ins rt th imag r ctor dir ctly into th focusing tub .
Tight n th scr w to k p th imag r ctor in plac .
2. Loos n th small scr w in th imag r ctor and ins rt your chos n y pi c into th imag r ctor. Tight n
th scr w to k p this y pi c in plac . (S Figur 12.)
Th imag r ctor provid s a 1.5x magnification, which m ans that th 20mm y pi c will magnify obj cts
approximat ly 50x, th 12.5mm y pi c approximat ly 90x, and th 7mm y pi c approximat ly 150x,
wh n us d with th imag r ctor.
Note: Do not us th 3x Barlow l ns with this acc ssory.
Tips for Telescope Use
Exploring th night sky with a t l scop is xciting—and chall nging! L arning to us a t l scop tak s practic
and pati nc . H r ar som tips to b tt r vi wing:
1. To locat obj cts, you must first l arn how th sky is laid out. Ch ck books about astronomy to l arn your way
around th night sky. Th n consult on of th w b sit s on pag 12 to ch ck th location of int r sting c l stial
sights. Local astronomy clubs ar a good sourc of information, too.
2. No matt r how much light surrounds you, mor is always wors . Turn off any lights you can. Also, allow 15
minut s or mor for your y s to adapt to th darkn ss.
3. Cool your t l scop to th outsid t mp ratur for about 30 minut s b for obs rving. Cooling th t l scop
r duc s air curr nts insid th tub that could produc fuzzy, blurry imag s.
4. Plan tary vi wing r quir s good “s ing” conditions—st ady, dry atmosph r with littl or no clouds. A good
way to judg s ing conditions is to ch ck th stars. If th stars app ar to b twinkling, a ph nom non caus d
by a turbul nt atmosph r , th n conditions ar poor for plan t gazing.
5. Us slow, st ady hand mov m nts wh n using your t l scop . This will minimiz vibrations and mak it asi r
to g t a st ady vi w.
CAUTION:
Never look directly at the sun, with or without your telescope. Never aim your telescope at the sun, or
anywhere near the sun. Instant and irreversible eye damage can occur, including blindness.
Note: Wh n looking through your t l scop , obj cts will app ar upsid -down. This is normal for all astronomical
t l scop s. Your t l scop is suppli d with an imag r ctor that prop rly ori nts imag s for t rr strial vi wing.
S pag 9 for dir ctions for using your imag r ctor.
Figur 12
Figur 11

1110
Frequently Asked Questions
1. Why is the image in my telescope eyepiece upside-down and/or backwards?
If you hav ins rt d your y pi c dir ctly into th t l scop ’s focusing tub , you will s an imag that is
upsid -down and backwards. This is normal for an astronomical t l scop . Aft r all, th r ’s no up or down in
spac so it do sn’t matt r how th fi ld is ori nt d. For t rr strial vi wing, wh n you want imag s to b
ori nt d prop rly (as s n with th nak d y ), ins rt th imag r ctor according to th dir ctions on pag 9
of this guid .
2. Why can’t I see anything when I look through my telescope?
If you s only whit , gray, or black through th t l scop , th r ar two lik ly caus s. Th first is that you
hav ins rt d an y pi c that is too pow rful. To solv this probl m, switch to a low pow r y pi c . As a
rul , always start with th low st pow r y pi c (20mm), gradually switching to th high r pow r y pi c s
only aft r you hav locat d an obj ct. Th s cond caus is that th find r scop is not prop rly align d. S
pag 7 of this guid for th proc dur to prop rly align your find r scop .
3. When I use my high power eyepiece, why does everything look darker?
As t l scop magnification incr as s, brightn ss diminish s. Brightn ss incr as s wh n magnification is
r duc d. If an imag app ars dark or uncl ar, try using your low pow r y pi c . It is asi r to study small,
bright vi ws of c l stial obj cts than larg , dark, or blurry on s. You do not n d v ry high pow rs to study
most c l stial obj cts.
4. Why do objects in the sky move out of view when I look through my telescope?
Wh n you vi w a c l stial obj ct through a t l scop , th rotation of th arth mak s it app ar as though
obj cts ar moving across th vi wing ar a. You can l ss n this ff ct and obs rv th larg st ar a of th sky
by using your low pow r l ns.
Observing the Night Sky
Your t l scop can bring you th moon and stars—and som plan ts, too.
Planets
Th plan ts ar our solar syst m companions. Th y rang in siz from Pluto, a rocky plan t small r than our
moon, to Jupit r, a giant gas ball that could hold 1,000 Earths. Vi wing th plan ts pr s nts som chall ng s. As
th plan ts in our solar syst m orbit th sun, th ir position in our night sky chang s. To find out wh r to look for
plan ts at a particular tim , ch ck an astronomy magazin , such as Sky and Telescope. You can also visit th
magazin ’s w b sit , list d on pag 12 in this guid .
Most p opl who hav look d up at th night sky hav probably s n som plan ts but did not r aliz it. A
plan t, wh n it is abov th horizon, will not twinkl lik a star. Plan ts ar r solv d by th y as tiny balls, as
oppos d to stars, which ar infinit ly small points of light. Th asi st plan ts to vi w, wh n th y ar visibl , ar
th fiv “nak d- y ” plan ts: Saturn, Jupit r, Mars, V nus, and M rcury. M rcury is th most difficult to s sinc
it is usually b low th horizon.
Each of th plan ts has its own s t of uniqu charact ristics, making th m a wond r to b hold. V nus is cov r d
with clouds, so all that is visibl is an xtr m ly bright light. How v r, V nus, lik th moon, go s through phas s
that ar visibl through your t l scop . Mars app ars to bright n and dim, d p nding on its distanc from Earth.
You can obs rv four of giant Jupit r’s many moons and its unusual cloud b lt patt rn through your t l scop
wh n vi wing conditions ar right. Sighting Saturn’s sp ctacular rings is a r warding xp ri nc for amat ur
astronom rs of all ag s.
Stars
Th stars ar so far away that wh n you look at on with your t l scop , you won’t s a disk as you do wh n
you look at a plan t. Ev n with a larg , pow rful t l scop , a star is s n as a point of light. Som stars look
larg r than oth rs, but what you ar actually s ing is bright r points of light compar d to dimm r points of
light. Th bright r stars ar n’t n c ssarily larg r, but th y app ar that way to us. With your t l scop , you should
b abl to s doz ns of galaxi s, star clust rs, and n bula .
The Moon
Th silv ry moon is an xciting subj ct to vi w with your t l scop . As Earth’s n ar st n ighbor, it’s about
a quart r million mil s away. That may sound lik a long distanc , but it’s clos nough that your
t l scop will r v al a fascinating lunar landscap of crat rs, plains, and mountain p aks.
H r ar a f w int r sting lunar f atur s to look for:
Mare Crisium
Mar Crisium (“S a of Cris s”) is actually a hug plain form d wh n gr at lava flows cool d and hard n d on th
moon’s surfac .
Crater Copernicus
Crat r Cop rnicus is a bright crat r with a hug ncircling ring of d bris that was thrown out of th crat r wh n it
was form d by an impacting m t or mor than 100 million y ars ago. It is 60 mil s (97 km) across and mor than
2 mil s (12,600 f t, or 3,840 m) d p.
Crater Tycho
Bright str aks or rays, b st s n during a full moon, manat from this crat r. Th rays indicat that this is a young
crat r. Ov r tim , m t ors constantly bombarding th crat r’s surfac will caus th rays to disapp ar. Crat r Tycho
is 56 mil s (90 km) across and almost 14,000 f t (4,627 m) d p.
Crater Grimaldi
This larg crat r looks lliptical in shap , but it is actually circular. It app ars to b lliptical b caus w s it on
th w st rn horizon of th moon, which is curving away from us. This ff ct is call d foreshortening. Crat r
Grimaldi is about 140 mil s (225 km) across and 10,500 f t (3,200 m) d p.
E
N
S
W
Mare
Crisium Crater
Copernicus
Crater
Tycho
Crater
Grimaldi
© Copyright 1982 Th Royal Astronomical Soci ty of Canada
Not : This map, lik your t l scop ,
shows a mirror imag of th moon.

1312
Learn More About Astrono y
Visit th s w b sit s to l arn mor about astronomy and th obj cts you s in th night sky:
• http://www.nasa.gov
NASA’s official w b sit
• http://www.nasa.gov/audience/forkids/home/index.html
NASA’s link with information for stud nts
• http://www.nasm.si.edu
Th w b sit of th National Air and Spac Mus um at th Smithsonian Institut
• http://www.space.com
Astronomy w b sit with int r sting links, including a sky cal ndar listing what’s visibl in th sky ach night
• http://skyandtelescope.com
Astronomy w b sit with us ful information, including a customizabl sky chart wh r you can typ in your
zip cod for a map of th night sky
• http://cosmobrain.com
Astronomy w b sit with xc ll nt links, including an astronomical cal ndar listing what’s visibl in th
night sky and an “astrolinks” s ction to many oth r outstanding sit s
Caring for Your Telescope
Tak good car of your Om ga R fl ctor and it will provid you with many hours of vi wing xcit m nt.
Storage
Your t l scop should b stor d, fully ass mbl d, in a cl an, dry, and dust-fr nvironm nt. It is unn c ssary to
s parat th optical tub and th mount for storing. If your t l scop has to b k pt in a bas m nt, garag , or
outdoors, cov r it with h avy plastic to prot ct it from moistur , and nsur that th dust cap and l ns cov rs
ar on. Acc ssori s should b stor d s parat ly in a box, with all th ir dust caps on.
Optics
Optical compon nts of a t l scop will g t dirty ov r tim . How v r, a consid rabl amount of dirt or dust must
b pr s nt on th optical surfac b for you will notic th ff ct visually. Follow th s sugg stions to maintain
your t l scop ’s optics in th b st possibl condition:
1. K p th dust caps on during storag of th t l scop to r duc th amount of dust coll ct d.
2. Aft r using th t l scop th r may b cond nsation on th optical surfac s. Wh n th t l scop is brought
insid , r mov th dust caps and allow th moistur to vaporat naturally. Point th t l scop downwards so
as to minimiz th coll ction of airborn dust. Onc th moistur has vaporat d, r plac th dust caps.
3. Filt r d, compr ss d air may b us d to r mov surfac dust from mirror. R mov th dust caps. Onc
r mov d, point th can away from th mirror and g ntly xp l som air and any cond nsation or dust that
has accumulat d on th discharg tub . Spray th mirror with short bursts of air to car fully r mov th dust
particl s. Do not hold the trigger of the compressed air can for extended periods because propellant from the
can might escape and damage the optical surface.
If aft r s v ral att mpts, you cannot r mov th particl s, tak th t l scop to an optical prof ssional for cl aning. If
you k p th dust caps on your t l scop wh n it is not in us and avoid handling th mirrors, only minimal optical
maint nanc of your t l scop should b r quir d. Ext nsiv cl aning is usually only n c ssary v ry f w y ars.
Warranty Infor ation
D ar Custom r,
Thank you for purchasing th G oSafari Om ga R fl ctor T l scop . W ’r c rtain that you will njoy th
l arning fun off r d by this product.
Educational Insights warrants ach unit against factory d f cts in mat rial and workmanship for on y ar
from th dat of purchas to th original purchas r only.
This warranty is invalid if th damag or d f ct is caus d by accid nt, consum r abus , or unauthoriz d
alt ration or r pair.
This warranty do s not cov r any claim conc rning worn-out or d f ctiv batt ri s.
If your G oSafari Om ga R fl ctor T l scop fails to op rat satisfactorily during th first y ar aft r purchas ,
r turn it postag pr paid to th addr ss b low. B sur to includ th product, your nam , addr ss, phon
numb r and/or -mail, a copy of your sal s r c ipt or invoic , and a bri f d scription of th probl m. If th
unit is found to b d f ctiv within th first y ar, it will b r pair d or r plac d at no furth r cost to you.
Direct all returns to:
Educational Insights
Warranty R plac m nts
380 N. Fairway Driv
V rnon Hills, IL 60061
Custo er Service:
[phone] (U.S. & Canada) or
[phone] (U.K. & Europ )
R gist r your G oSafari Om ga R fl ctor T l scop at: www. ducationalinsights.com/productr gistration
Note: Your t l scop ’s primary mirror is a pr cision ground and polish d compon nt that
is pr cis ly position d at on nd of th optical tub . It is pr -align d for maximum
p rformanc at th factory and should not n d any adjustm nt. N v r adjust or r mov
any of th scr ws locat d at this nd of th t l scop .