cassini C-900135EQ3 User manual

C A S S I N I™
COSMO BRANDS INC.
WWW.COSMOSOPTICS.COM
MODEL : C-900135EQ3
900mm X 135mm

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INTRODUCTION
OPERATING INSTRUCTIONS
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THIS TELESCOPE HAS BEEN 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 .
USE THE TELESCOPE FOR TERRESTRIAL (LAND) VIEWING BEFORE ATTEMPTING TO VIEW
ASTRONOMICAL OBJECTS. THIS WILL FAMILIARIZE YOU WITH HOW POWERFUL EACH
EYEPIECE WILL BE, AS WELL AS INTRODUCE YOU TO THE FUNCTIONS OF YOUR
ACCESSORY LENSES .
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 .
THE IMAGE YOU SEE WILL BE UPSIDE DOWN AND BACKWARD. THIS IS DUE TO THE
FACT THAT YOUR TELESCOPE IS AN ASTRONOMICAL TELESCOPE AND HAS BEEN
MANUFACTURED FOR ASTRONOMICAL OBSERVATIONS.
PRACTICE WILL ENABLE YOU TO KNOW HOW MUCH MOVEMENT TO EXPECT WITH EACH
EYEPIECE AND IT S CORRESPONDING POWER ' .
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C-900135EQ3 TELESCOPE
CONGRATULATIONS ON YOUR PURCHASE OF THE CASSINI C-900135EQ3 TELESCOPE.
C A S S I N I

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
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C-900135EQ3 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
BATTERY
COVER
D)
E)
2 INCH TO 1.25 INCH ADAPTER
2INCH HELICAL RACK & PINION FOCUSING.
ALLOWS FOR PRECISE FOCUSING.

ACCESSORIES
C A S S I N I
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C-900135EQ3 TELESCOPE
F)
G)
I)
COUNTER WEIGHT
MICRO-ADJUSTMENT
MICRO-ADJUSTMENT
H)
CASSINI CD-ROMSTELLARIUM
FROM ANY LOCATION YOU CAN SEE THE
ANY TIME OF DAY, SKY AT IT APPEARS AT
OR EVEN IN THE FUTURE.
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NOTE: SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

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
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C-900135EQ3 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.
3. LOOSEN MOUNTING KNOB ON THE EQUATORIAL MOUNT (UNDERNEATH)
4. PLACE THE EQUATORIAL MOUNT ONTO THE TOP OF THE TRIPOD.
5. TIGHTEN LOCKING KNOB (UNDERNEATH THE TRIPOD TOP) SECURELY.
6. 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
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C-900135EQ3 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.
12. REMOVE CAPS WHEN TELESCOPE IS IN USE,
AND REPLACE WHEN NOT IN USE. THIS WILL
KEEP THE TELESCOPE'S OPTICS CLEAN.
13. THE COLLIMATION SPOT ON THE PRIMARY
MIRROR IS FOR THE OPTICAL ALIGNMENT
OF THE TELESCOPE, AND IS NOT A DEFECT.

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3X BARLOW
EYEPIECES
KF25MM PL10MM
C A S S I N I
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C-900135EQ3 TELESCOPE
LOCKING KNOBS
ELECTRONIC RED DOT FINDER
EYEPIECE
TO SKY
FRONT
BACK
MICRO-ADJUSTMETNT
MICRO-ADJUSTMETNT
EQUATORIAL MOUNT
COUNTER WEIGHT
COUNTER WEIGHT SHAFT
TRIPOD
ACCESSORY TRAY
ADJUSTABLE
RUBBER FEET
MOUNT LOCKING KNOB
TRIPOD LOCKING KNOB
HELICAL RACK & PINION FOCUSING
OPTICAL TUBE

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HOW TO USE EYEPIECES & ACCESSORIES
C A S S I N I
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C-900135EQ3 TELESCOPE
1. FOCUSING TUBE - TURN FOCUSING KNOBS
TOWARD THE TELESCOPE UNTIL IT WILL GO
NO FURTHER. TO FOCUS BEGIN TO TURN THE
FOCUSING KNOBS TOWARD YOUR BODY,
SLOWLY, UNTIL THE IMAGE IS CLEAR. NOTE:
YOU MUST HAVE AN EYEPIECE INSERTED IN
ORDER TO VIEW IMAGE. PLEASE READ
FURTHER.
2. EYEPIECE INSERTION - INSERT AN EYEPIECE
INTO THE 1.25" ADAPTER THAT IS IN 2"
FOCUSING TUBE. WE SUGGEST YOU ALWAYS
BEGIN WITH THE LOWEST POWER EYEPIECE
(25MM). REMEMBER THE LOWER THE NUMBER
ON THE EYEPIECE, THE HIGHER THE POWER
OUR TELESCOPE WILL BE USING. ALSO AS
YOU INCREASE YOUR POWER YOU WILL
DECREASE THE FIELD OF VIEW AND THE
BRIGHTNESS OF YOUR TELESCOPE.
3. BARLOW LENS - THE BARLOW LENS IS REQUIRED
TO ACHIEVE THE MAXIMUM POWER FROM
YOUR TELESCOPE. INSERT THE BARLOW
DIRECTLY INTO THE FOCUSING HOUSING
INSERT AN EYEPIECE DIRECTLY INTO THE
RECEIVING END OF YOUR BARLOW LENS.
REMEMBER YOU WILL HAVE TO READJUST
YOUR FOCUSING DUE TO THE FACT THAT YOU
HAVE INCREASED THE POWER OF YOUR
TELESCOPE.
1.25" ADAPTER
THIS WILL GIVE YOU THE WIDEST FIELD
OF VIEW AND BRIGHTEST IMAGE
(25MM EYEPIECE)
2"" FOCUSER
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.

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
™