£-180ED - Takahashi

HYPERBOLIC FLAT· FIELD ASTROGRAPH
£-180ED
INSTRUCTION MANUAL
TAKAHASHI
Thank you lor purchasing the TAKAHASHI Eptilon-l80ED lE-1BOEO)
hyperbolic IIItrograph. The E-180EO employ, 11 new 2-element
corrector that utes an ED element, which provides much better
correction than a Schumidt camera lor aberrations. The E-l80EO has
been de.igned as an astrograph for imagining with digital SlR'.,
CCO camerllS and film carner... Please read the instruction mlnual
to familarize yourself with lhe functiont of the telescope Ind its
features and their functionl.
I
I
LtWARNING
DO NOT UNDER ANY CIRCUMSTANCES POINT
THE TELESCOPE AT THE SUN NOR TRY TO OB­
SERVE THE SUN. THIS WILL RESULT IN INSTANT
BLINDNESS AND SEVERE BURNS.
THIS TELESCOPE SHOULD NOT BE TAKEN OUT
DURING THE DAY. THE SUN WILL HEAT THE IN­
L!lDAN~
@'/
IS
SIDE OF THE TUBE AND MAKE THE COOL
DOWN TIME VERY LONG.
KEEP THIS TELESCOPE OUT OF THE REACH OF CHILDREN
DURING THE DAY. THIS TELESCOPE IS DESIGNED TO BE
USED EXCLUSIVELY AT NIGHT.
I
=,
.""
&
~
CAUTION
• When placing the E·180EO into the tube holder, make certain that the
holder is level and both axes of the mount locked to insure that the
telescope will not be tilted and fall to the ground.
• If the E-180EO is placed on a surface such as table. make certain that
it is flat to prevent the telescope from rolling off on the ground and
breaking.
• Keep the telescope out of any direct sun light.
• Keep small children away from small objects such as oculars 10 pre­
vent Irom swallowing something that can harm them.
• Keep the shipping carton in a safe, dry place and away from any
flame. The carton can be used as a temporary travel case.
-2­
I
CONTENTS
Warning & Caution ·········································2
Specifications ················································3
Tube Assembly Layout
4
What is the E-180ED7
5
Attaching Finder Tube Holder
6
Focusing System
8
Finder Alignment
11
Observation
· ·
·· ·····..·.··.·········13
Photographic Accessories
16
Optical Alignment ·············· ..··.. ·
·
17
Care & Maintenance ·...· ·········.. ···..··········25
System Chart
··..·
·..··· · ··
···26
SPECIFICATIONS
II
II= = = =
====-O!
Optical System
Hyperboloidal Catadioptric
Effective Aperture ··························180mm
Effective Focal Length
500mm
Effective Focal Ratio
1:2.8
Secondary Mirror Diameter
80mm
Corrector lens
ED 2-element
Image Circle
4J 44mm
Photographic Field
5.0 degrees
Melal Back
56mm
Diameter of Main Tube
length of Main Tube Assy
Weight of Main Tube Ass'y
Finder Scope
Focusing System
232mm
570mm
·..·..·.. 10.7kg (23.6Ibs] wnx50 finder
7x50 6.3'
Rack & Pinion
- 3­
Ihl====T=U=b=e=A=S=S=e=m=b=IY=L=a=YO=u=t====dll
_-coo
,
Spider
Pull Screw (Di'lgnal Optical Aleis)
/7Sh Screw (Di'COnal 09lieal
o..awtut,. Lockinc Screw
_
Axis>
Top Aina
Vl_1 AdaPter\
Couplin'<S) \
1.25 Ocula'
\
Adapt"r
w
C.,
~_,=~
~
Oilllon,1 MilTOl"
1_-- M1in Tube
focusint: Knob
finde..­
Lock Rin.
Finder Bue
Find
Bracket
A4justing Screw
PrimfrY Mimw Cell
Double Screw
{Primary Mirror Optical Axisl
Bottom Ring
FiC. 1
is the E-180ED?
II
II= =What
====!I
• OptiCIII S~ltem
A Newlonian r,fI,etor tin not produce the
same Ilet field II the Pe~v.llour elamerl! re"
frKlo.. lor nt.opl'lOtog •• phy. A conCIIV1l mir·
rD. uted with. con""" lens cln produce. flllt
fleld also. The IenI referred 10 her. ~. doublet
corrector ".ed with. hyperbolk prim.ry cln
.110 produce. Ita! field correctltd lor spherlcel
abe'ration end coma. This is the E-HIOEO.
.E-18OED Built for the lie_
of~
c.rr-.
Tho E·lIlOED is an advaneed del"il" of the Ep.
I~on. hyperbolic utrogr.ph duign. The new
d••'lIn doublet corr_ctor employ' In EO slll­
ment to COfTed abefrMiolw •• _11 ••• Schmidt
Clme,.., Comparltd to thl old., Epsilonl, the
.bell'lltions from m. ult.. viole!: 10 inl•••lId If.
1/2 those of the orig",,1 clet:ign Epsilon.
This 112.8 IJyltem will produce 10 micron stl'
8Cfolllhe 5li11ld. The sme" dislOfliona of the
o.illrl81 design hive been improved by 1l3rd.
1...... -
• T.....h..hi MIfTOI'" ~ TKMoIoIlY
Tekahllihi hal been producing hyperbolic mir·
rors for more ltlan 20 VHrs end they hive im·
proved their production procedure to prodUoCl
the highell quelily hyperbolic Pfimariel..
• DieconII Offset
In order to achieve the meximum iIlumirllllon
1M ..eondlry must be offset from the cenllr
of ltlI opttullllis 10 produce the beSl polljble
illumination for lhe~. AI the splIld of the
optical ~m inereases, 10 60IIltlI offMt. The
oversized sewndlry has been off",IO produce
lhe muimum iflumaliOf1 for lhe irM9l.
1 .. 1• • • ,00 . . " .......
I
- -­ - - ­
-•
The O\I&rllzed dlegon.1 rDduces ela'lI8f illum!­
""lid eirclot. n.. E-1IIllED is the perfect fnt wid.
field Istrograph for digital SLR'I Ind ceo earn·
erel.
•
•
I.'" _
"""'-­
. ."
..........­.
~-,
.
..­
•
"
Fil.2
- 5­
Iy
g
The E-180ED is shipped with the finder in a
separa e box to prevent damage du ing
shipping. Use the allowing i scion
0
assemble the ,"der a d bracket and tube
holder.
Attaching The Finder
A 8eh he finder bracket using the 5mm
s e
1.5
prolJiided as illustrated in he Fig.3. Do no screw
in the bol,ts wi
au tne finder bracket since they
will bo om out 'n the end of theapped hole.
_-
fi .3
B fore inserting the inder into the inder
bracket. wrap the
are
ale finder bracket
scr ws will make contae with he body of the
finder with three I yers 0 clear tape to prevent
sera ch
rom being made on the place where
the screws make contact with he tube.
Then, screw au
e fe r set until nylon tip
makes contact with the bracket and the front
sc ews un ilthey no longer protrude inside he
lOder bracket. Insert the Inder for en infinity
arget during the ,day and loc the rear screws
with he lock. nuts
d ma e certain that the
front set of screws a e in fJrm contact with the
body of lh
!
der.
a e that the chrome screw nea the eyepiece
IS rmoved to insert he optional eticle lIumina­
tor.
.&
ever use
CAUTIO
finder and bracket as a handle
o Ii the E-180ED. This will cause the finder
o loose its al gnmen and could cause dam-
h brae et holdin
fi de
0
Fi d r Ba"e
the
-6­
. Balancing
Attaching the Tube Halder
Attach the tube holder to the Ml-plate (5) or (Ml
with th B bolts p rovid ed and do not i 9hte n th em
r
too ghtl
y. but ce nter
he holde r i rl he brae ket.
Turn the Dec. axis until the base of the plate is
paraUe 0 the ground and lock the axis.
Place the-1,BO'ED into the holder and tighten
the c amps to the point wher the OTA is heid,
bu still can be slid e fo rwa rds
Of
ba ckwa rd 5 fo r
balanc. Then, unlock the Dec. clamp but hold
the OTA with one hand for safety. Let go then
to balance the tube. Ilf any equipment Will be
used, a i;lch he camera before ba ancing. It is
Tllbe
no der-
be-suo h 1Ve the focuser pointing sky!Nard wh n
this procedure's one.
lock Nut
Then, unclamp the !A.A. but hold on to the OTA.
Move the counter weights on the shaft until the
instrument is balanced in any position it is
moved.
Further, when imaging begins it is a good idea
to· ba ance the instrumen and camera in he
arc in which it wi![ be used· 0 image. This in­
sures superior trad·llg.
"II
..
IEquatorial Mount
Fig. 5
Fig 6
-7­
Attaching The Finder And Tube Assembly
The E·l80EO is.hipped with the findel In e
sepalate box to prevent damage dUling
shipping. Us. the following in&truetions to
assemble Ihe finder end bracket and lube
holde•.
_---w.....
• Attachinc The Finder
AnectllM finder brecke! UI;ng th, 5mm It 1.5
provided lIS iIIustrlted In the Ag.3. Do noIlCrew
in the bolu withoUllhe fir><!ef bn.c;kel I;nr;:e they
will bottom OU1 in the end of the tlIpped 1>0'-.
Fi&. 3
Belolll inserling the finder Inlo the flnde'
bracket. wrep the erea thel the finder b•.,;klll
SCrews will mllke contact with the bo<I~ of the
linder w~h three layers of cle.r tllpe to pnMInl
A1i_ _ Scr...
scratches from being I'nllde on 1M place wh&rfI
/
the SCr...... make contl>Cl w;u, the rubol.
Then, SCreW OUI tile rear Sill until nylon lip
mSke. ~nlKI with the bracket end the f,onl
ICr8W1l untillhey 00 Ionge. protrude inside the
1
l<
50 Fonder
linder b,ackeL I....." lne find". 10. an infinity
1ll'ge1 during the day 100 lock the lelr ICI'8W5
wjlh the lock nuts.nd make nrtsin tNlllhll
front Ittl of IC'''- .r. in firm conllrcl with the
bodv of the finde'
fi&4
Note lhellhe chrome KJ_ noee,lhe eve piece
~
'lTIO\Iod 10 inNn the opIionel 'ttliele Klumine­
~,.
Lt
CAUTION
Ne_ .... the IinOot _
IInc:hl .. I tI8ndI.
10 lift the E-18ClEO. ll» .... C81'" the IVKIer
to 100" !U
end coo.>kl CIOU" .... m­
....
... to !h<I brl<:ht hoI6nJ the
moe.. 10 the
.
- ­
Focusi g
_ Focus Clamp
A er inserting the ocular or a aching the cam­
era. it is best to achieve the best possible fo­
cus. Since the MEF 10 to 1 fine foeuser or after­
arke
lectric foe use scan
e I.!sed with the
E.180ED, very precise focus can be achieved.
The focus clamp is provided a lock the draw
tub . Then. he i age is pr cisely ocused.
When a camera is precisely focused. then the
focus clamp will lac the focus. When the fo­
cus is changed, loosen the focus clamp until
focus is achieved again fo
he next image.
Focusing System
The -1aOED us s a rae -
d-pinion focusing
system. This system permits rapid focusing.
By
MEF-1 (Micro Edge Focuser)
turning the arrowed' direction, the focuser will
move out ,and by urning the knob reversely,
the foeuser will move in. Re e to the ig,9.
This options Iy iVsUable 10 to
fine focuser can
be attached in stew minues. Itfeatures 10 to 1
micro focLls'ng with adjustable drag. It can be
ordered wi h the E-180ED.Refer 0 the Fig.10.
Drawtube Locking Screw
1/10 micro ocuser Knob
Tum
nob this way.
en, he focuser mav
Fig.10
0
Fig.9
90­
Visual Use
S' nee the E-180 is f/2.8, if it wlll be used
VISU­
Compressin Ring
ally, emember that the large seconday pre­
.r_~
cludes the use of any ocular 10 ge than he
Takahashi LE-12.5mm or shorter. The oversized
secondary which iJlu inate the field imi s the
focal length of the ocular hat can be used 0
12.5mm.
TI e ·180 is supplied with the standard 1 1/4"
....... /
Ocular
Plastic Rln.g
compression ring adapter: Insert the ocul r into
the holder and ighten the compression ring.
ig.
Oculars
ollwing oculars a e available from
TakahashI. Use I em in t e best way.
The
LE Oculars
A wide selection of wide leld oculars are avail
able from 5mm to 30mm.
Hi LE Oculars
HI LE-2.8mm and HI LE·3.6mm are available.
-10 ­
=====_F_i_n_d_e_r_A_I_ig~n_m=e_n_t======,11
11.1
,>-ir----------------------------------------------"~~~
~---------------------- ------------------l::::)
Before the finder II placed In 1M finder holder.
U$OI pLtSlH; <;Ie" l,peI ,nd \ape the lind". ~h
two lIIye•• to prellent Ihe lube from being
S<:rltched by the from finder leI screws.
• Adjusting Screw Procedure
1. Tum .. the Ioclr.n<n unlillhey .each the head
of the arognmenl iJC._ _•
A finder i•• useful tool. It permit. the precise
clInte,inQ Dian objea in the field of view. The
6.3" field oj view ,110_ the lIny clInl.flng of
In obtKt to be villWll'd or pholog~phod,
The T,ltahllh' finde. uS" an Interrupted
crautlll" wIIich is designed to allow the easy
centering of In object to be photogrlphlld o.
oblllrwd. The wide field of the findllr makes
the finding of an object ..,ier, therefore, it i.
Important thillhe '-1Ade. end u.. 11IlfI"'oop be
In alignment. Thlllollowing procedure an be
used to allgll the finder.
Fir,12
• Alignment Procedure
1.
Place. low power eyepfece in the tlllflscojMl
end cenlef I bright''''. in. convenient pert
of the _ky. 00 not 10'11"110 fl"9&l!1I1he mo·
10' d ..... 10 keep the star CIlntltfed. If thie pro­
codu•• ill done in daylight, UIoI ItIl object thlll
II at lellt one mile away. loo..n the lock
nutl on tha finder bracut and Ilightly moIIa
tha lIar to the canter of the field usllllltha
adjusting alignment iJC"~,
2. Than usa a higher magnification eyepiece
and ,epeattha procedu.e by centering tha
object in Ihtt field of view of the telescopa
and than the find... Cominua this p,ocell
until the highlll possible magniflCltion hn
bIIen UMtd.
v.... r..ld of Tol..,,_
Fir.13
-11­
2. In order to mo,va the crosshair in the direc­
In orde to turn the illuminator on, turn he' knob
clockwise. The knob will click when the illumi­
screw la) and
ighten (push) the mder with screw (cl. This
nator turns on. As the kno is turned, th re 'de
tion of the arrow. first
100SBr'l
procedure will move the c ossharr in the de­
will brighten. Adjust he knob to the desired
sire direction. The top of the finder will move
brightness. Tu n the nob counter-clockwise
in the opposite direction and the object will
past the click to turn he ilI11minatoroff. Re
move in the direction 0 the smaller arrow.
Fig.14.
to
Re erto Fig.12,13.
Replacing The Ba ery
3. In a similar fashion the dir ction of the move­
ment of he finder is made by adjusting he
hree screws.
Before c aoging the batteries in the illumina­
tor. please be certain to tum it off. Unscrew the
battery aide as shown ill Fig.14. Remove the
Learn the rei tionship between the movemen
01
aueries and insert new one after they nave
of the three adjusting screws. If the finds can­
been wi . ad wi h a clean dry cia h. Chec the
na be moved in
polarity
e desired direc io ,loosen
the
0
a eries before tnse ing hem
in 0 the holde . Use two silver lV76·PKl or
eqUivalent batteries.
the locking nl.l s.
Reticle Illumina or [Optional}
The 7X50 'nd r has p ovision for an optional
reticle illumina or. if an illuminator will be in­
stalled, remove he cap screw at the end of the
/
. / old the knurled cap and
th ba ery case as alTo d
finder and install the reticle illuminator. The illu­
minato makes the cen ering of dim objec s
easier.
Fig.15
Fig.14
-12 ­
11=====o=b=se=,v=a=lio="======'I11
• Cool DoWl'1
• Astra lmecinll:
The E-180ED UIU In ov...ind primary Of
190mm whiCh requlrel' ~ool down period
Crltlc.el foeus is nlH:essery to pl'odUCllll>e fIlIt­
field pin point star the! the E· Hl(lED Is designed.
This foe .... shoukl be ,ectleckad with""h 1m_
for the lempefBw,. of the primary mirrOf to
eq..-liH wilh the outdoor temper.t"re. Thiw
especialto,r trullln the colder winter.
~
It iI.cllriNobie 10 au tlNI in!ltrument oUlebollt
sn t>ou. bela.. it intended ..... 10 In, ... " 'em·
pe'ltur. Iql.lllliulion.
• Visu.l1 Observation
• Determininr M'lflific.tJon
The E·lIlOEO tin bHn dnlgned IS. flet.f",ld
utrOllreph. Due 10 the ove,.i.ltd .econdary
whoch provides illumlnellon lor im.gin!l. As.
,.sul! it is edviNble 10 uN ocular 12.5mm or
shorter in focillel'lllth. This Is perf&C1 for tligh
contrast d.ep Spacl viewing. Using I lone.'
locilleoglh will show lhe shadow of Ihe nc·
ondllry.
8gtI
..-la.
• Prime Focus Photocraphy
Ttla E·I80EO Is dasillned 10 ba used at its
native focallllnglh of SOmm. Due to its lpeed
01 1/2.8, the depth 01 field ;s va<y Imlll Ind
,equi,es p,ecl.e Ind l!ltcetlent focus. It II
necltlSllry 10 ule a hIlaVV duty K<;u.ale mOUnt
10 tIM tracking accu,acy to match the verv small
10 mic'O<1 s-.'s.
• Prime Focus Photocrlptly
The corrector _mbly u.... I Tlul>elhl wida
mount T·ring. The,alo,e. IHl adlpter Ihlt has
thasa wida mount T-th,aads.1Id the .ppropri­ ala Idapte' on the Olh" ,nd to InloCh it to I
digital SlR. The....... Iv.llIbie "wen IS adapt.
a" lor ceo and film Clm.,IS.
The eft.ctl.... magnification il determined bV
dividing m. foul"ngth of the E·180EO 500mm
by the foceIlength of !he ocu'-<. 12.5mm In this
ceH producing. magnffication of 19.69X. this
I, • greel m"llnification lor wide field viewing.
•
F II 16
- 13­
• Filters
ocusing
Focusi g ith the FM-60 ocusing microscope
nd ground glass is shown in Fig,1 5. Se
e
ground glass in place wi h t e mat side acing
the objective of the TOA. Then focus nd check
for pinpoin focus over he field of view.
Filters can
ttached to he E-180ED optical
train. A 48mm filter can be a
ched to the wide
mountT-adapter or digital and film SLR's and a
52mm filter
0
48mn
the co rector.
It er
Wide T-mount
I ,I
,.~
Focus'
Fig.18
Screen
FM-60
-
-
Fig.17
58mm
ItBT
Corrector lens
Fi g, 19
If this s done, it is possible hat these fil ers
could cause 9 losting and equire a d"fferent
ocus point due a
- 14­
eir thic ness.
eBntF...,..
Stnot ..... IW'I WI lhe r..1d of ltwl £-l80EO af.
only 10 m",-. vefY pnc_ focus II ~ .. "ed
10 k. .p the Ilefl p'ftPGi"1 Oft lhe image A
.......uel miefO. ,', et-.c: 0< ~putef cofttn:.-.cI
focwet w. best 10 ..... ....m digUl Slits lind
ca>_.
I a 35mm _
toe ......... ed
, it
bv
c~.....
cwM<e
them best focut CWl
1M lAbhnho FM-60 10­
1M lind a _ _ beck 3I5mfn
to kHp ..... tim fItt.
.T_.. . . .
Ilefote e.ke.ng lhe E.18OE.0 to. remote W. it
ill bHt 10 try RIme lhoft (110!l minutltll tltll
thots 10 lett focutlnll end gltldlflll techniques.
• Remincl«1I
1 Make ee""n the Camefa Angle Adjuster Ioc:k
fing hal bea" lighlfned 10 Pfevenl the cam
.... from moving while an image illeken.
2. foIow 1M lYItem cllwt when using a dlgitll
0< film SUI end check wilh your local die
-lributof to< 11M prope< ceo lpeeef fOf lhe
......... and filtw 'IIIf'IlHIlhet wi. be uHd 10
......
- 15­
IlkI ====P_h_O.;to.;.g;;..;,a..;p;..h_i.;.C_A_C.;.C;..e;..s;.;s;.;o.;'_ie ;,;s====dll
Dedicated lICCessorles are available for attaching
a ClImera to the E-I80ED.
• Wide T-Mount
When I SUI camera is _tied, I wide T-mount
I. used I' lhown in the Fjg.20. Tne following
wid' T.... ounl$ . ' " IYlillobkllrom Tluna,tw.
eenon EOS/Canon fD/NlkonfMlnoha alIa/
PIInl••·l(fO!ymPU5·0M
•
Flt.20
• 75mm
Iqo.HIr.
lilt.... box & au. rin,
When I Iar"l fo,m.l 6..1 is used. 75mm lilt"
1:>0•• nd .Ult ring .r. required.
Rill,. to lhe Fig. 21. A 6.7 film Ilolder II_II·
able f,om T.ltah.eshi.
- 16­
Opllcal Alignment
II
II
The £·I80EO ;. coll'lNItltd end locked belor.
lhipmenL It it possible <I.. 10 seve,. shock thM
2 CQllim"ing lube end eyepie<:I, standard fm
U.S. and opliaMI for other merkels.
the Opbca could decolli~ed. Further. Ihey will
come. many V.... aWly, ",hen 11>. optics
'hould be eleaned. Therefore It ilalJQOd idON
to b&comellmilil. with the eoUi",..unli pt~.
dl,l"'0 keep the OlXieI perfectly collimlltlld 10
3. Large IG'''''' dr~ 1",H,ble in. hardware
prC>dUC:I lop nolch
I~•.
In th, I"ent th,t \h, i",(rument become.
<lecollimated, use the lollowing p/ocedu.1 to
precisely oolllm.te the optic:,.
Of
1001 slorl.
• Connection (l)
Tighten the camefll angle adjusta. lock ring by
tu.ning one of the four spokes clockwise.
Remove lhe corrector connectlllg the visuel
lIdapter to the dr_tube.
Be su.e to .emove the COffllCtor afMlmbJy. be­
Precis, eollimetion iI nllClIlSlIfY 10 IN;hieve lhol
optic,; polllnt;,,; ollhi. fnllystem.
• Collimating Tools
cause tile instrument cannot be collimated If it
ill not removed.
V"tsU8' Adaple'fCollim8ling TubelCoupl.nglSII
The following lool!lll" ,equi.ed to collimatelhe
E·1BOEO.
1 Visual edapter, coupling lSI. ocular Idaptlr,
2mm. 2.5mm. 3mm Aile" w'''''chu and
Smm, lOmm 'r>d 17mm open end wrenchn.
1heH ••• lupplifld IS stand,rd ICClI$$O'''I.
-
Ocular Adapte. 11 114"¥ I 114' Collimating
E~.
rn
--1L-----"~. O~·11--V....... A.doopl;.,.
-''''
(()puonaj)
Cous>!in&<S)
1.25-0cuIat
Collimabn&
Adapt.,.
eypie<;.
FiC.22
- 17­
Oonnee ion (2)
o
Using the collimating eyepiece nd coJlima ing
ube will be a grea help in collmating the ­
, 80ED. The collimating tube has a provision for
rne insertion of a crosshl'.lrr. Use ylon hre d
pulled together taught an our small pieces of
ape to scure the crosshair.
Collimating mal'll on the primary
CollJmating mark on
e seeD d ry
en these stra ds
can be glued for a permanent set up.
When colfim tion is necessary, a process that
is done during the day in a bright lit room; the
elescope can be pointed at B brightly lit
w
ite
wall or at a translucen' whi e sheet laid across
a w ndow. Plac'El he tube with the focusr to
the left as facing he light source. The fgure
i11llJstates he set p just descr"bed. lit is sug­
9 sled tha if possible you attach the E-1aOED
to the mount. This will m e pointing and lev­
eling he OTA and pointing it towards he light
sou ce simple.) If you loose your orientation to
the movement of the secondary, place your fin­
ger ove the
0
ening of the tube to regain your
orientation.
The directions of the field of view correspond
a the numbers 1
Aetiusting the
@
3
-
Ag. C-'
2
rough 4 on the illustration.
Secondary
irror
The sec.ondary can be adjusted by loosening
the large nut a the cel'lte to tum it and the three
sman sets of screw to til f •
//-_ _-- Fou Van
Splder~
I
Sec nda!Y Mirror Holder TlJIb~
Offs" Mm
Diagonal M ror
lJ. C-2
-18 ­
l.Tuming the mirror
Loosen the large securing knurled nut tha ho ds
he secondary assem Iy to th spider slightly
by u ning it counter-cloc wise. This will alow
the secondary to be turned in either direction
and then ightened by turning the nu cloCk­
wise. When he securing nut is loosened, loosen
the nut very sparingly 0 allow the secondary
to be tumed. but no 00 loose.
2.Moving the secondary mirror
oosening he la rge knurled knob so rne dis­
tance will alia
secondary to be moved up
or down in a parallel fashion tor better collima­
tion.
3.T1lting the secondary mirror
There are three screws wlth locking nu s pro­
vided to allow he seco dary mirror to be tilted
for collimation. In order to tile the secondary. It
is n cessary to loosen he lock nuts. loosen
each slig htly to preven the seconds ry from
oVlng too mu~h. Refer 0 the Fig. C-3
Aligning he Secondary Mirror
(J Turn the corsshair of the collimating eyepiece
so t a one set of I'ines is parallel a he ground
which would rna e he second set of lines
p rpendicular. Make ce in t a the telescope
IS ointing at the white card 0 he Window
which a ranslucent curtain. In the vent hat
the optical is rotated as shown in the Fig. C­
Fig. C·3
Colhm 'ng mark on the secondary
5A.
Loosen he 121 rg e knurled nut holding he
threaded rod of the secondary holde and
tu I'll I€ secondary as showln in he Fg. C-4.
Collimating mark
J) Rotate the secondary un 11 your eye relected
on the p 'mary
in the diago na as it is ce ntared in the
crosshair. Wi h he ref action of your eye in
cen ered in the crosshair, slightly tighten the
knurled nut. Refer to the Fig.C-5B.
Loos n
Fig. C-5A
d ur.
Then,tigh en i by
and h secan ary_
-­
FI C·58
Fig. C-4
T m tn& secondary no der
-19 ­
@ Insert the collima 'ng ey,epiece and t I the
seeon 'sry mirror untiJhe dot on the sur­
face in over the center of the crosshairs. In
the iIIus ration Fig. C-7, the center of th col­
Slee
limating eyepiece marches he cen er of the
crosshair, but he secondary do is located
Opening
low and to the Ie . The secondary must now
epiece
tilted toward the primary mirror mark (+) and
the (+) mu
be moved upw rds,
All. C-6
Perpend'clar line
Slightly loosen he push screws A. 8. C af­
ter backing off the lock nuts. Loosen the I rge
Horizo itall (l
knurled n t in the center and tighten the
ush screws A, 8 and C. Refer to the IFigs.
Rll, C-7
C-8 and C-9.
Loosen the p In
Fill. C-B
e s:erews A.B,C
Push
Fill. C·9
Push the scr,liw B,
Now the center dot of the secondary has
been shifted below he center of the
cross airs. I hen becomes necessary to til
the secondary using sc ews A, Band C 0
centerthe dot on the secondary
i
the cen­ ter of the crosshairs.
- 20­
E9
EB EO
-
EO EB
(!lIn this process the cemer of lhe reo
flection of the coUimeting eyepiece
has been .hifted off cemer e. seen in
lhe Fig. C-l0. Then il become. nee·
uury 10 rotete end tilt the second·
ery mirror .0 thetthe cemer of the
'eflection of the collimeling eyepiece
in cemered on the cros.heirs. In tke
Fig. ColO the secondary is rotaled so
Illal the reflection in on tke cros.hllir
and in tha Fig. C·ll the .acondary i&
ti~ed so thet Ike center reflection of
Ike collimeling eyepiece in centered
on the eros. hairs by lightening push
SCrew A.
('f)
Now the cemer reflection of the colli­
meting eyepiece is cemered over lhe
cros.hIIirs es well as the cemer dot
on lhe secondary mirro,.
..............
C.ht., .... 1. of th.
~
Out.id•• c!f;. of
..
.~II­
me....... ~opioeo
TtOo
_~to
..td
*'" ..... ,"'"'"
d f­
_lion of
[Thio fi,..........t•• tho
tho <On"O(:t ooeondoty mirror.l
(Note: ~ .... _
tho uclo
........... mirror M' be." loft out.l
Tho orbit _
tIM oro..
of tho aooohoir it wmod
Of'
tho
flg.C-12
poI'1t
------'jpl-b9(
flg.C.13
- 21 ­
• CoRifNtinl the Prwn.ry
At yotllooll: thrOugh the collimeton; -VlplKe
you wlI notIcl Own the circle on the prlmery
mirror is not _ered on the reflectioll 01 doc
on the eurfeu 01 the II Cg Idery end dw orJl5.
meang .plece.
en.
the
the
*
"V 1lO
the prtrnMV 1lO ~
on doc plIoced on Ihe MCOAdery end
~ ..,Ipiecl pMMm.
• • . - t...
~
. ..... I,
•
flI.-C-1S
"­
.~
l
-_:.;;;:.::-:_:"".
/
-~
Yow .... I - . the llmm DpItl and Wlellch eup­
plied end I Ierve ecmw drf<ooet.
laollll the . . . ._
01 the ...... 01 the
•
.....
-
,
.,
PIa C-l1
~
eea. Yow'" _lhIlthe1tne~
_
_
_
belllJed COl,JI'llltr-clockwIH A. B & C.
PIHM study !he illustration oIlhtt crou MCtlon
n.e
01 thl collimltlng sc.-.w Mil.
iliultlllion
,hOWl the puU SCrlw which is the tcr_ It the
cenl.. WIth the ,-,,,I ,Ionld knurled heed, the
lock nut Ind the puth .cr_. The puth.cr_
• edjUfled by looeeninliI the lock nut and tur...
lng the pwh SCrlW with the ltmm open Ind
wrlnch. n.. centar puIIlCreW Is -.0 wed 10
Ead'I 'Ihe mlmll' cell 10 the . - 01 the?'
'Cle
.-.d '" Iltllled withl"'" bteded tcr_ckiva
NotIng the IocItJOn 01 the drde on dw lUffeu
01 dw pnmery in dw ifnalle at the coknwng
..,Ipoece. Mljlm the pm,..y miffCll'.
·n·
....­
Adjusting he Primary
is
est 0
Irror
ave the E-180ED on the mount
Reme
erthe edth of e
hoi er (side of
the seeD dary nOlder)
5eco~dllry
pointing as c ose to straigh up as possible to
use gravity to ma e certain hat· e movemen
o the mirror will be permanent and it will en­
sure tha
h cell is seated properly.
Loo from top 51 e
This si de looks wide
Look frQfl'l bottom side of the focuser
Fig. C·l?
Looks from op si
Looks from bo
0
side
Fig. C· 8
1. Loosen all the pull screws.
2. Then loosen all of the lock nuts.
3. Using the 19mm open en wrench ti he
pri~ III ry so that he circle 's moved to be
concentric wfth he pa tem on he di gonal
reflection as seen t rough the collim.a ing
Pull nu
eyepiece.
. Then tigh en the pull screw nd all of' he
locking nuts with the' 9mm wrench. Check
P sh and lock nu
he im ge a er this is done a make certain
that
or
colfmation
e adjustment has been lac ed in place.
Ag, c-19
ow, turn the focuser w[th the Came a Angle
EB
Adjuster. As seen in the Fig.C-13 the crosshairs
will orbit a ound the center dot on the s cond­
ary.
There ore. f rtherfine adjustments are required.
Fig. C-20
- 23­
Rg. C-21
• AdcibonIl CoIimation(P«f~ CoImation)
Loosen the Ioclc ring Ioc:sted Sl lhe base of the
lOCUM. which wi. slaw the focuse. to btl .0·
~ted
t_
m..-.v _
n
pall"
Note Ih'l the crollh'irs
off the cellIe. pattem gf the colt­
milling .-,.epiece as the fOCUM' Is IOUled. II
10.
"'nne.
Ii. .
calimWon.
requorllCl. (Nola:
• DiffrIotion Rinc
Since tile dilgonel mirrO! of the E·18OEO is off·
set 10 produce, "'lly ilhJminelllCl im'll" arcIe,
when Ihe "isu,1 im'll. is delocused th"
diff..... ring will1PPN' _
.. ic. This is per.
fecdV nDfmal. TlliI does noI 1ft indiution of
. . . .1IbDn.
This fin. collimation hes ,I,Nd.,. btIen pu­
IormllCl by the fxtOfV.I
PIN...OlMe the!oaBe. 190 note the position
of the CrolSl'Nlir in ItlIMion to the ClIM'. of the
coUim"itlQ eyepiece.5 the focuM'1s lu.ned.
Th, crollh,i. will move righl .nd left defining
• cenle, In between. Then, 'Otlle the focuse.
90 end lhis win move lhe crosshlir up 'nd lh&n
move the focuse' 180 which wm define lhe
Iowermosl position. Now be,.ing in mind the
"'rtheSl left. right. upper mOSI 'nd furthesl
cIowrI posillOn will define' center, This wiU
define the _
dent., for ~ ~
lIM the IIbc:noI pl~ ID tnO\Ill the crosst.ir
so lhlt wh.n Ih. locuse, i. rOliled, Ihe
ClOeIheir rotates evanIy ...ound the center 01
the f-'d .. viewed through _ coIirNting eye_
P«t, (Remembef thII thls prooed,.. hes been
,I.elldy been perfOlmed III !he flelory.)
- 24­
[HOTEl
Befor .ttelPtinl any adju,t.ent for
the priaary, secondary, end ,pid"r,
please uk 'fOO' local distributer.
Doinl any .djusllent yours"lf without
notic" Ii II uk" warranty void.
161
=====~c~a_r.;.e_&;...M~a_in_t~e_n;;a,"n.;c.;e======11
• Primary and O'.loN! t.lorror
When tkey get dew on thel, furl_ during ab­
..rvation or when [My gel moi$Iure on !he mir·
cle.ned wilh' ce'
we~_
moistu.... mey ea..H the mlrro"lnd fi><lu,", get
mltlfV and diftY. When the diagonal or the pri·
• V_I Adlolllf' Al$embly
Ttleloe"'"' may come 10 be loosened Ifle. a
k:>ng period of use. k can be fi~ed by the Idju.-t­
Ing screws provided on Ihe foeUller " lhow in
the Fig.23. 8e car"'",1 nol to lighten lhe locuser
mary minor g$U du. on It. lake it out with the
100 mlfCh.
ro. aft•• the scopall broughllnto WOrm room
hom cold outside, dry
~
Immediately. Dew and
cell 1000ethe' end blow DUIIIMl dust by. hind·
poWll' blowe•. When mold or rusl cover. til the
mlrro•• tleaning or rOCCHIling me., be require<!.
In ll>Ch CUI, Ilk Vour dnle. whellO do.
A alight p'euu'" on the mirrOI lTUlV o:.u" the
'1,1'-, imlg"l dislOfted. A gr"l
muS! be
I.Ikan when the celt Is .., in pllce ,ft•• repei._
f;lI'"
''''
service. Do nol set the Ie'<l'" 100 light. Sturrp
edgtl of !he diagDnlIl can be chi9Ped by • shock
on it. Be cereful in hand6"l1_
• CorrectOf' Lens
Never U.k. OUI the conector lens from ibcelL it
is \lffJry diffi(;ulllo' Imlt",. to align the lena [0
keep it, fight performance and doing 10 will
....q
",.".my
YQid. If !he !em; surface getI dust
!.Ike oUCllle .."mbly Irom the drlWlube Ind
blow OUI Ih. dust by I h.ndpower blow.r.
Shoukl ~ get dirt odingerpnnls on tile lenl. wipe
il genlly w'Ih • SWllb mOiSlened wilh lens
cluner, wrning it f,om the cenler towerd the
edge.
.,
...
DtJst on the me;n lube eln be wiped off with.
dUlle. Ind "'ined dirl on lhe tube C'n be
- 25­
11~====s=Y=sl=em=c=ha=rl====='J11
.
19
29
"
J3
10,
v....... IOdoo>t.. [TKPte005]
13_~S)(n(POOI03J
It. ~ lon, (TKP&esaol
II.
e..-.-.na tub. [Tl(rolq)
8 . ~•• or
""l,lS·~'J
n,WdoT_
:w 3 _ SLR ceorwa .. ~ SLR c.mofa
q. o.:..ow _-<1n-KTJ(POOI01)
"
u 0"..1..(1.25")
50. __ ....,.... bo,j(Tl(M1UO]
II. c;-., ceo _ _
- . l _ .... t..t>o_....-b!)o
• PartaNoo, 10.1', II._Q ....
• sa... JiImm c
o sa... ceo.-..
_
to.
....-.-t" ""'" tho _
T_
_II. ~t" wit/> tho ....... ...--.
- 26­
Of--- film Iw>Ido< Oy..om