cassini C-90080EQ1 User manual

C A S S I N I™
COSMO BRANDS INC.
WWW.COSMOSOPTICS.COM
MODEL : C-90080EQ1
900mm X 80mm

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INTRODUCTION
OPERATING INSTRUCTIONS
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™
C-90080EQ1 TELESCOPE
CONGRATULATIONS ON YOUR PURCHASE OF THE CASSINI C-90080EQ1 TELESCOPE.
C A S S I N I
PRODUCED TO PRECISE SPECIFICATIONS.
PRIOR TO USING YOUR NEW CASSINI 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.
THIS TELESCOPE HAS BEEN CORRECTED AGAINST CHROMATIC ABERRATION AND

ACCESSORIES
10MM = 90X (270X WITH 3X BARLOW)EYEPIECE
.3X BARLOW
USED TO INCREASE THE POWER OF ANY GIVEN
EXAMPLE - 25MM EYEPIECE BY 300%. EYEPIECE
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NOTE: SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
EYEPIECES:
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.
C A S S I N I
™
C-90080EQ1 TELESCOPE
A)
B)
SEPARATELY PROVIDES 36X POWER, WHEN USED
WITH THE 3X BARLOW, YOU NOW HAVE 108X POWER.
C)
MOST POWERFUL - LEAST LIGHT
25MM = 36X (108X WITH 3X BARLOW)EYEPIECE
LEAST POWERFUL - MOST LIGHT
D)
E)
G)
BATTERY
COVER
COUNTER WEIGHT
MICRO-ADJUSTMENT
MICRO-ADJUSTMENT
F)
CASSINI CD-ROMSTELLARIUM
FROM ANY LOCATION YOU CAN SEE THE
ANY TIME OF DAY, SKY AT IT APPEARS AT
OR EVEN IN THE FUTURE.

ASSEMBLY INSTRUCTIONS
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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..
C A S S I N I
™
C-90080EQ1 TELESCOPE
TELESCOPE W/MOUNT ATTACHED
TRIPOD (PREASSEMBLED)
RED DOT FINDER
EYEPIECES (25MM & 10MM)
3X BARLOW LENS
COUNTER WEIGHT
TWO MICRO-ADJUSTMENTS
ACCESSORY TRAY
CD-ROM
2. ADJUST TRIPOD TO PROPER HEIGHT BY LOOSENING, ADJUSTING
AND TIGHTENING THE LOCKING KNOBS.
4. LOOSEN MOUNTING KNOB ON THE EQUATORIAL MOUNT (UNDERNEATH)
5. PLACE THE EQUATORIAL MOUNT ONTO THE TOP OF THE TRIPOD.
6. TIGHTEN LOCKING KNOB (UNDERNEATH THE TRIPOD TOP) SECURELY.
3. ATTACH ACCESSORY TRAY
7. ATTACH THE COUNTER WEIGHT TO THE EQUATORIAL MOUNT.

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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.
C A S S I N I
™
C-90080EQ1 TELESCOPE
8. ATTACH THE TELESCOPE TO THE EQUATORIAL MOUNT.
9. LOOSEN SCREWS ON ELECTRONIC RED DOT FINDER AND
SLIDE ONTO BRACKET. TIGHTEN ATTACHMENT SCREWS.
(PLEASE SEE FURTHER INSTRUCTIONS ON RED DOT FINDER).
10. ATTACH MICRO-ADJUSTMENT TO EQUATORIAL MOUNT.
11. ATTACH MICRO-ADJUSTMENT TO EQUATORIAL MOUNT.

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3X BARLOW
EYEPIECES
PL10MM
C A S S I N I
™
C-90080EQ1 TELESCOPE
ELECTRONIC RED DOT FINDER
EYEPIECE
SUN SHADE
DIAGONAL MIRROR
MICRO-ADJUSTMETNT
MICRO-ADJUSTMETNT
EQUATORIAL MOUNT
COUNTER WEIGHT
COUNTER WEIGHT SHAFT
TRIPOD
ACCESSORY TRAY
ADJUSTABLE
RUBBER FEET
MOUNT LOCKING KNOB
TRIPOD LOCKING KNOB
FOCUSER
KF25MM
OPTICAL TUBE

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HOW TO USE EYEPIECES & ACCESSORIES
C A S S I N I
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C-90080EQ1 TELESCOPE
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.
EYEPIECE POWER POWER W/3X BARLOW
25MM 36X 108X
10MM 90X 270X
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.
25MM IDEALLY SUITED FOR ALL TERRESTRIAL AND ASTRONOMICAL VIEWING.
10MM EYEPIECE IS RECOMMENDED FOR NIGHTS OF STEADY SEEING.

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 BATTERY SAVER LOCATED BENEATH FRONT OF FINDER (BE SURE.)
TO SAVE AND REPLACE THE BATTERY SAVER WHEN NOT IN USE.)
5 TURN FINDER ON BY SLIDING ON/OFF SWITCH FORWARD. ) ON/OFF SWITCH IS LOCATED
ON THE RIGHT SIDE OF THE FINDER.
6 LOOK THROUGH THE FINDER AND LOCATE THE RED DOT) .
7 IF THE OBJECT IN THE FINDER IS NOT THE OBJECT YOU SEE THROUGH THE) RED DOT
MAIN TELESCOPE TUBE, ADJUSTMENT IS REQUIRED.
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) ,
ELECTRONIC FINDER RED DOT
MOUNTING ALIGNMENT
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10 THESE ADJUSTMENTS WILL ALLOW YOU TO POSITION THE RED DOT ON THE SAME)
AT THE FRONT LEFT SIDE OF THE FINDER TO THE PROPER POSITION.
OBJECT CENTERED IN THE MAIN TELESCOPE.
C A S S I N I
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EYEPIECE POWER POWER WITH 3X BARLOW
25MM 36X 108X
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.
POWER CHART
GETTING THE MOST FROM YOUR TELESCOPE
10MM 90X 270X
C A S S I N I
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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.
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MOVING THE TELESCOPE MANUALLY
OUNTERCLOCKWISE.
BALANCING THE MOUNT IN R.A.
TO ELIMINATE UNDUE
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BALANCING THE MOUNT IN DEC
ALTHOUGH THE TELESCOPE DOES NOT TRACK IN DECLINATION, THE TELE
D BE DONE FOR THE SPECIFIC AREA AT WHICH THE TELESCOPE IS POINTING.
ADJUSTING THE MOUNT
IN ORDER FOR THE TELESCOPE TO TRACK ACCURATELY, THE TELESCOPE
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0 GOING UP TO 90.
IT IS BEST TO ALWAYS MAKE FINAL ADJUSTMENTS IN
ALTITUDE BY MOVING THE MOUNT AGAINST GRAVITY
(I.E. USING THE REAR LATITUDE ADJUSTMENT SCREW
TO RAISE THE MOUNT). TO DO THIS YOU SHOULD
LOOSEN BOTH LATITUDE ADJUSTMENT SCREWS AND
MANUALLY PUSH THE FRONT OF THE MOUNT DOWN
AS FAR AS IT WILL GO. THEN TIGHTEN THE REAR
ADJUSTMENT SCREW TO RAISE THE MOUNT TO THE
DESIRED LATITUDE.
TO INCREASE THE LATITUDE OF THE POLAR AXIS, TIGHTEN THE REAR LATITUDE A
ADJUSTING THE MOUNT IN ALTITUDE
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POLAR ALIGNMENT
TAKE THE TELESCOPE OUTSIDE AROUND 30 MINUTES BEFORE YOU ARE READY TO OBSERVE.
THIS WILL LET THE TELESCOPE COOL DOWN TO THE AMBIENT TEMPERATURE. THIS WILL
ALLOW THE TELESCOPE TO PERFORM AT IT'S BEST.
ONCE IT'S DARK YOU ARE READY TO DO A POLAR ALIGNMENT. LOCATE THE STAR POLARIS,
AND POINT THE TELESCOPE'S R.A. AXIS TOWARD THE STAR POLARIS. TO DO A POLAR
ALIGNMENT, THE R.A. & DEC. AXES MUST BE LOCKED DOWN AND MUST NOT MOVE. TO GET
POLARIS IN THE EYEPIECE YOU MUST MOVE THE MOUNT IN AZIMUTH AND LATITUDE TO
CENTER POLARIS IN THE EYEPIECE. ONCE THIS IS DONE, LOCK THE AZIMUTH & LATITUDE
LOCK KNOBS, AND YOU ARE READY TO OBSERVE. NOW, TO MOVE THE TELESCOPE TO AN
OBJECT (MOON, JUPITER, SATURN ETC.) YOU MUST ONLY MOVE THE TELESCOPE IN THE
R.A. & DEC. AXES AFTER THE POLAR ALIGNMENT HAS BEEN COMPLETED. LOOSEN THE
R.A. & DEC. AXES AND MOVE THE TELESCOPE TO AN OBJECT BY LOOKING THROUGH THE
FINDER (WHICH HAS ALREADY BEEN ALIGNED), AND PLACE THE RED DOT ON THE OBJECT.
START OBSERVING BY USING THE 25MM EYEPIECE WHICH GIVES YOU THE WIDEST FIELD
OF VIEW AND BRIGHTEST IMAGE. WHEN OBSERVING THE MOON AND PLANETS START OUT
WITH THE 25MM EYEPIECE. WHEN YOU WANT TO GET A LARGER IMAGE, CENTER THE
OBJECT IN THE EYEPIECE, AND CAREFULLY TAKE THE 25MM OUT AND REPLACE IT WITH
THE 10MM.WHEN USING THE BARLOW, IT MUST BE PLACED INTO THE FOCUSER BEFORE
THE EYEPIECE . THE 3 X BARLOW WILL TRIPLE THE POWER YOUR EYEPIECE
PRODUCES.
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COSMO BRANDS INC.
21230 SW 246th ST. FL 33031 USAREDLAND
CASSINI
™