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LEVISTAR 90
Instructions
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LEVISTAR 90
OPERATING INSTRUCTIONS
INTRODUCTION
THIS TELESCOPE HAS BEEN CORRECTED AGAINST CHROMATIC ABERRATION AND
PRODUCED TO PRECISE SPECIFICATIONS.
PRIOR TO USING YOUR NEW LEVISTAR TELESCOPE, PLEASE READ THE FOLLOWING SETUP
AND USAGE INSTRUCTIONS. IT IS IMPORTANT TO PROPERLY ASSEMBLE YOUR TELESCOPE
IN ORDER TO ALLOW IT TO FUNCTION PROPERLY.
CONSIDER USING THE TELESCOPE FOR EARTH (TERRESTRIAL) VIEWING BEFORE
ATTEMPTING TO VIEW ASTRONOMICAL OBJECTS. THIS WILL FAMILIARIZE YOU WITH HOW
POWERFUL EACH EYEPIECE WILL BE, AS WELL AS INTRODUCING YOU TO THE FUNCTIONS
OF YOUR ACCESSORY LENSES.
DUE TO THE DIAGONAL MIRROR POSITIONED IN THE FOCUS HOUSING, THE IMAGE YOU
SEE WILL ALWAYS BE RIGHT SIDE UP. BUT LEFT AND RIGHT ARE REVERSED.
WE RECOMMEND YOU BEGIN WITH THE LOWEST POWER EYEPIECE, 25MM, WHEN USING
YOUR TELESCOPE. AS YOU INCREASE THE POWER TO 10MM, YOUR POWER WILL BE HIGHER,
BUT THE IMAGE WILL APPEAR DARKER; THIS IS DUE TO THE BASIC PHYSICAL PROPERTIES
OF THE TELESCOPE. THE HIGHER THE POWER YOU USE THE DARKER THE IMAGE
WILL APPEAR AND YOUR VIEWING FIELD WILL BE MORE NARROW.
PLEASE BE PATIENT WHEN USING YOUR TELESCOPE. IT IS A VERY SENSITIVE INSTRUMENT
THAT IS CAPABLE OF USING HIGH POWERS. HOWEVER, THE MORE POWER YOU USE, THE
MORE SENSITIVE THE TELESCOPE BECOMES. AS A RESULT, THE SLIGHTEST MOVEMENT OF
THE TELESCOPE COULD CAUSE YOU TO LOSE THE IMAGE YOU HAVE IN YOUR EYEPIECE.
PRACTICE WILL ENABLE YOU TO KNOW HOW MUCH MOVEMENT TO EXPECT WITH EACH
EYEPIECE AND IT'S CORRESPONDING POWER.
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ACCESSORIES
A.
ELECTRONIC RED DOT FINDER:
USED TO LOCATE OBJECTS PRIOR TO
USING MAIN TELESCOPE.
PLEASE NOTE YOU MUST ALIGN THE
FINDER WITH THE MAIN TUBE PRIOR TO
INITIAL ASTRONOMICAL OR TERRESTRIAL USE.
B.
EYEPIECES
25MM EYEPIECE =24X (LEAST POWERFUL - MOST LIGHT)
10MM EYEPIECE =60X (MOST POWERFUL - LEAST LIGHT)
C.
3X BARLOW:
USED TO INCREASE THE POWER OF ANY GIVEN EYEPIECE BY
300%. EXAMPLE - 25MM EYEPIECE SEPARATELY PROVIDES 24X
POWER, WHEN USED WITH THE 3X BARLOW, YOU NOW HAVE
72X POWER.
DIAGONAL MIRROR
D.
E.
TRACKER MOUNT
VERTICAL ADJUSTMENT
F.
G.
HORIZONTAL ADJUSTMENT
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LEVISTAR TELESCOPE
ASSEMBLY INSTRUCTIONS
CAUTION: NEVER POINT YOUR TELESCOPE
AT THE SUN. VIEWING THE SUN WITH
THIS TELESCOPE OR EVEN THE UNAIDED
EYE CAN RESULT IN BLINDNESS OR OTHER
SERIOUS EYE DAMAGE.
1 REMOVE ALL PARTS FROM BOX AND IDENTIFY THEM.
TELESCOPE W/MOUNT ATTACHED
TRIPOD(PREASSEMBLED)
ELECTRONIC RED DOT FINDER
EYEPIECES(25MM + 10MM )
3X BARLOW
ACCESSORY TRAY
2. EXTEND TRIPOD LEGS EQUALLY AND TIGHTEN LOCKING KNOBS.
3. ATTACH TRACKER MOUNT TO TRIPOD AS SHOWN.
(DO NOT OVER TIGHTEN)
NOTE : TENSION SPRING & WASHER
LOCATED HERE
WASHER
KNOB
4. ATTACH ACCESSORY TRAY
HOOK HOLDER
ACCESSORY TRAY
(1) SPREAD TRIPOD LEGS APART SO THE TRAY WILL FIT UNDERNEATH
(2) PLACE THE TRAY'S HOOK OVER THE HOLDER'S METAL ROD AND PUSH DOWN
(3) TIGHTEN THE HOLDER'S LOCKING KNOB TO HOLD THE ACCESSORY TRAY IN PLACE
LOCKING KNOB
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5. ATTACH THE TELESCOPE TO THE TRACKER MOUNT.
LOOSEN CONNECTING TRACK KNOB AT THE TOP
OF THE TR AC KE R MO UN TI NG B RA CK ET. SL ID E
THE TEL ES CO PE I NTO AND CENTER IT IN
THE MOUNTING BRACKET. TIG HT EN THE
CONNECTING KNOB.
6. ALIGN THE BOTTOM OF RED DOT FINDER TO
THE GROOVE OF THE FINDER BASE,
THEN SLIDE THE BOTTOM TO FINDER BASE.
7. ATTACH VERTICAL ADJUSTMENT TO TRACKER MOUNT. TIGHTEN THE
THUMB SCREW. MAKE SURE THE THUMB SCREW MATCHES THE PIT.
THUMB SCREW
PIT
8. ATTACH HORIZONTAL ADJUSTMENT TO TRACKER MOUNT.
TIGHTEN THE THUMB SCREW. MAKE SURE THE THUMB SCREW MATCHES THE PIT.
THUMB SCREW
PIT
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FEATURES OF LEVISTAR 90
MICRO VERTICAL
ADJUSTMENT
ELECTRONIC RED
DOT FINDER
EYEPIECE
DIAGONAL MIRROR
AZIMUTH LOCKING KNOB
ACCESSORY TRAY
FULLY ADJUSTABLE
ALUMINUM TRIPOD
VERTICAL
LOCKING
KNOB
FOCUSER
OPTICAL TUBE
SUN SHADE
TRACKER MOUNT
MICRO
HORIZONTAL
ADJUSTMENT
ADJUSTABLE RUBBER FEET
TRIPOD LOCKING KNOB
KELLNER
25MM
EYEPIECES
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PLOSSL
10MM
3X BARLOW
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HOW TO USE EYEPIECES & ACCESSORIES
PROPER PLACEMENT OF THE EYEPIECES AND ACCESSORIES ARE IMPORTANT IN
ORDER TO ASSURE EASY OPERATIONS AND CLEAR VIEWING.
PLEASE CONSIDER USING YOUR ACCESSORIES IN THE FOLLOWING ORDER. BY DOING
THIS YOU WILL BETTER UNDERSTAND THE IMPACT EACH INDIVIDUAL ACCESSORY HAS
ON THE FUNCTION OF YOUR TELESCOPE.
1) FOCUSING TUBE
TURN FOCUSING WHEELS TOWARD THE
TELESCOPE UNTIL IT WILL NOT GO FURTHER.
TO FOCUS BEGIN TO TURN THE FOCUSING
KNOBS TOWARD YOUR BODY, SLOWLY, UNTIL
THE IMAGE IS CLEAR. NOTE: YOU MUST HAVE
AN EYEPIECE AND DIAGONAL MIRROR INSERTED
IN ORDER TO VIEW IMAGE.
2) DIAGONAL MIRROR
INSERT THE DIAGONAL MIRROR INTO THE
FOCUSING HOUSING.
3) EYEPIECE INSERTION
AFTER THE DIAGONAL MIRROR IS INSERTED,
PLACE THE EYEPIECE (25MM) INTO THE
DIAGONAL MIRROR. THE LOWER THE NUMBER
ON THE EYEPIECE, THE HIGHER THE POWER
YOUR TELESCOPE WILL BE USING. PLUS,
YOU DECREASE THE FIELD OF VIEW AND
THE BRIGHTNESS OF YOUR IMAGE. WHEN
USING EYEPIECES, WE SUGGEST ALWAYS
STARTING WITH THE LOWEST POWER AND
THEN GOING UP.
4) BARLOW LENS
THE BARLOW LENS IS USED TO ACHIEVE
THE MAXIMUM POWER FROM YOUR
TELESCOPE. FIRST, REMOVE THE DIAGONAL
MIRROR FROM THE FOCUSING TUBE AND
INSERT THE BARLOW LENS DIRECTLY INTO
THE FOCUSING TUBE. YOU WILL HAVE TO
READJUST YOUR FOCUSING DUE TO THE FACT
THAT YOU HAVE INCREASED/DECREASED THE
POWER OF YOUR TELESCOPE DRAMATICALLY.
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ELECTRONIC RED DOT FINDER
MOUNTING & ALIGNMENT
TO MOUNT:
1) REMOVE ELECTRONIC RED DOT FINDER FROM BOX.
2) LOOSEN THUMB SCREWS ON SIDE OF FINDER AND SLIDE FINDER ONTO DOVETAIL
MOUNT LOCATED AT TOP OF MAIN TELESCOPE TUBE.
3) TIGHTEN THUMB SCREWS.
TO CHECK ALIGNMENT WITH MAIN TELESCOPE:(IMPORTANT!)
1) THE ELECTRONIC RED DOT FINDER IS NOT PRE-SET AT FACTORY. THE FOLLOWING
WILL ALLOW YOU TO ADJUST THE ALIGNMENT.
2) DURING THE DAY LIGHT HOURS, AIM THE MAIN TELESCOPE AT AN OBJECT AT LEAST 1/4
MILE OR MORE IN THE DISTANCE AND BRING IT INTO FOCUS.(VERY IMPORTANT)
3) ONCE YOU HAVE CENTERED THE REFERENCE ITEM IN THE MAIN TUBE, TIGHTEN ALL
KNOBS AND ADJUSTMENTS TO PREVENT ANY MOVEMENT.
4) REMOVE CIRCULAR B ATTERY S AVER L OCATED B ENEATH F RONT O F F INDER (B E S URE.
TO SAVE AND REPLACE THE BATTERY SAVER WHEN NOT IN USE.)
5) TURN FINDER ON B Y S LIDING O N/OFF S WITCH F ORWARD. O N/OFF S W ITCH IS LO CATED
ON THE RIGHT SIDE OF THE FINDER.
6) LOOK THROUGH THE FINDER AND
LOCATE THE RED DOT.
7) IF THE OBJECT IN THE ELECTRONIC RED DOT FINDER IS NOT THE OBJECT YOU SEE
THROUGH THE
8) TO MOVE THE RED DOT UP AND DOWN, SIMPLY TURN THE ELEVATION SCREW LOCATED
ON THE REAR BOTTOM OF THE FINDER TO HEIGHT REQUIRED.
9) TO MOVE THE RED DOT LEFT AND RIGHT, SIMPLY TURN THE WINDAGE SCREW LOCATED
AT THE FRONT LEFT SIDE OF THE FINDER TO THE PROPER POSITION.
10) THESE ADJUSTMENTS WILL ALLOW YOU TO POSITION THE RED DOT ON THE SAME
OBJECT CENTERED IN THE MAIN TELESCOPE.
MAIN TELESCOPE TUBE, ADJUSTMENT IS REQUIRED.
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TO REPLACE CR2032 BATTERY
1) USE SCREWDRIVER TO UNTHREAD THE SCREW
THAT FIX THE BATTERY COVER TO RED DOT.
2) TAKE OUT THE BATTERY COVER, PICK UP
THE SPRING TAKE OUT BATTERY,
AND REPLACE A NEW ONE. THEN PUT ON
BATTERY COVER AND FIX IT
BY SCREWDRIVER.
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USING THE BARLOW LENS
AS STATED EARLIER IN THE INSTRUCTIONS, THE BARLOW LENS INCREASES THE POWER
OF THE EYEPIECES BY 3 TIMES.
TO USE SIMPLY INSERT THE BARLOW LENS INTO THE MAIN FOCUSING TUBE AND THEN
PUT THE DESIRED EYEPIECE INTO THE RECEIVING END OF THE BARLOW LENS
PLEASE REMEMBER, THE HIGHER THE POWER YOU USE THE DARKER THE IMAGE WILL
APPEAR.
POWER CHART
EYEPIECE
25MM
10MM
POWER
24X
60X
POWER WITH 3X BARLOW
72X
180X
GETTING THE MOST FROM YOUR TELESCOPE
TAKE THE TIME TO BECOME FAMILIAR WITH YOUR NEW TELESCOPE. LEARN THE NAMES
OF THE VARIOUS PARTS, WHERE THEY ARE LOCATED AND THEIR FUNCTION. IT IS BEST TO
PERFORM THESE FUNCTIONS DURING THE DAY TIME.
WHEN SETTING UP FOR A VIEWING SESSION, PLACE THE TELESCOPE IN AN AREA
SHELTERED FROM THE WIND IF POSSIBLE. THE BEST NIGHT TIME VIEWING WILL BE AWAY
FROM CITY LIGHT AND WHEN THE ATMOSPHERE IS "STEADY".
WITH A LITTLE PRACTICE YOU WILL LEARN TO JUDGE WHEN VIEWING CONDITIONS ARE
GOOD. LOOK FOR THE NIGHTS WHEN THE STARS SHINE BRIGHTLY WITH LITTLE OR NO
TWINKLING.
USE LOW POWER TO TAKE ADVANTAGE OF THE WIDER FIELD OF VIEW AND BRIGHTER
IMAGE. RESERVE YOUR HIGHER POWERS FOR THOSE NIGHTS WHEN VIEWING
CONDITIONS ALLOW FOR DETAILED OBSERVATIONS.
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TRACKER MOUNT
LOCATING OBJECT
BEFORE LOCATING NEW OBJECT, RE-ALIGN YOUR VERTICAL AXIS
VERTICAL LOCKING KNOB
A. LOOSEN VERTICAL LOCKING KNOB ENOUGH TO WH ER E TELESCOPE CAN BE
ADJUSTED UP AND DOWN.MANUALLY
AZIMUTH LOCKING KNOB
B. LOOSEN AZIMUTH LOCKING KNOB ENOUGH TO W HE RE TELESCOPE CAN BE
ADJUSTED LEFT AND RIGHT.MANUALLY
C. POINT YO UR TELESCOPE IN THE DIRECTION OF YO UR TARGET OB JE CT, ZE RO IN G
IN USING THE MARS EYE RED DOT FIN DE RS CO PE . (S EE PAGE 8)
ONCE OBJECT IS LOCATED THROUGH THE MARS EYE FINDERSCOPE, TI GH TE N
BOTH THE VERT IC AL LOCKING KNOB AND AZIMUTH LOCKING KNOB FIRMLY.
DO NOT OVER TIG HT EN .
WHEN THE KNOBS ARE NOT TOO TIGHT IT IS POSSIBLE TO GENTLY MOVE THE
TELESCOPE TO A NEW POSITION WITHOUT LOOSE NING THE KNOBS AND THE
SPRINGS WILL HOLD THE T ELESCOPE IN THE NEW P OSITION.
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TRACKER MOUNT
LOCATING OBJECT
D. USING THE LOWEST POW ER E YE PI EC E (2 5 MM ), L OO K THROUGH THE TEL ES CO PE
TO SEE YO UR TARGET OB JE CT.
MICRO VERTICAL
ADJUSTMENT
MICRO
HORIZONTAL
ADJUSTMENT
E. IF THE OBJECT IS N OT CENTERED IN THE EYEPIECE, USE TH E TOP FLE X CA BL E
(MICRO VERTICAL ADJUSTMENT ) FOR P RE CI SE U P AND DOWN MOVEMENTS,
AND THE BOTTO M FL EX C AB LE ( MI CR O HO RI ZO NTAL ADJUSTMENT) FOR PRECISE
LEFT AND RIGHT MOV EM EN TS TO CENTER YO UR TARGET OB JE CT IN THE EYEPIECE.
REMEMBER AS THE EART H RO TATES THE O BJ EC T WILL DR IF T OUT OF VIEW IN
THE EYEPIECE. USE THE TOP AND BOTTO M FL EX C AB LE S TO MAKE
SIMULATAN EO US U P/ DO WN AN D LE FT / RI GH T MICRO ADJUSTMENTS TO K EE P
YOUR TAR GE T OBJECT CENTERED IN YO UR E YE PI EC E.
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TRACKER MOUNT
LOCATING OBJECT
F. AS YOU M AK E UP /D OW N (V ERTICAL) MICRO ADJUSTMENTS, BE CAREFUL TO
MAKE SURE THE VERTI CA L ADJUSTMENT GUI DE L IN ES D O NO T EXCEED THEIR
PARAMETERS.
VERTICAL ADJUSTMENT
GUIDE LINES
FIGURE 1.
G. WHEN THE GUIDE LINES APPEAR AS IN TH E PI CT UR E BE LO W, (F IG UR E 2) R E- SE T
THE VERTICAL ADJUSTMENT USING THE TOP FL EX C AB LE ( MI CR O VE RTICAL
ADJUSTMENT) TO MATCH FIGURE 1, THEN REPEAT STEP A. THR OU GH S TE P E.
FIGURE 2.
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