cassini C-80 User manual

Instructions
FS-80

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.
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. IN ASTRONOMICAL VIEWING,
THERE IS NO UP OR DOWN, NO RIGHT OR LEFT.
WE RECOMMEND YOU BEGIN WITH THE LOWEST POWER EYEPIECE, 20MM WHEN USING
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 POWER. 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.
INTRODUCTION
YOUR TELESCOPE. AS YOU INCREASE THE POWER TO 6MM YOUR POWER WILL BE
CASSINI C-80
OPERATING INSTRUCTIONS
2

ACCESSORIES
3
A)
ACCESSORIES
MARS-EYE ELECTRONIC 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.
EYEPIECES:
6MM EYEPIECE = 133X
MOST POWERFUL - LEAST LIGHT
20MM EYEPIECE = 40X
LEAST POWERFUL - MOST LIGHT
HELICAL RACK & PINION FOCUSING.
ALLOWS FOR PRECISE FOCUSING.
CASSINI CD-ROM SET
PLANETARIUM
FROM ANY LOCATION YOU CAN SEE THE SKY AT IT APPEARS AT
ANY TIME OF DAY, OR EVEN IN THE FUTURE.
A)
B)
C)
D)
NOTE: SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

4
1 REMOVE ALL PARTS FROM BOX AND IDENTIFY THEM.
TELESCOPE W/MOUNT ATTACHED
TRIPOD(PREASSEMBLED)
MARS-EYE FINDER
EYEPIECES(6MM + 20MM )
ACCESSORY TRAY
CD-ROM
2. EXTEND TRIPOD LEGS EQUALLY AND TIGHTEN LOCKING KNOBS.
3. ATTACH TELESCOPE + MOUNT TO TRIPOD AS SHOWN.
(DO NOT OVER TIGHTEN)
C-80 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.
4. ATTACH ACCESSORY TRAY
ACCESSORY TRAY
HOOK HOLDER
(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
WASHER
KNOB
NOTE : TENSION SPRING & WASHER
LOCATED HERE

5
5. LOOSEN SCREW ON MARS-EYE FINDER AND SLIDE
ONTO BRACKET. TIGHTEN ATTACHMENT SCREWS. ( PLEASE
SEE FURTHER INSTRUCTIONS ON MARS'EYE FINDER).
6. REMOVE CAPS WHEN TELESCOPE IS IN USE,
AND REPLACE WHEN NOT IN USE. THIS WILL
KEEP THE TELESCOPE'S OPTICS CLEAN.
7. THE COLLIMATION SPOT ON THE PRIMARY
MIRROR IS FOR THE OPTICAL ALIGNMENT
OF THE TELESCOPE, AND IS NOT A DEFECT.

6
EYEPIECES
F20MM
MARS- EYE FINDER
MOUNT LOCKING KNOB
TO SKY
FRONT
BACK
TRIPOD
TRIPOD LOCKING KNOB
HELICAL RACK & PINION
FOCUSING
ALTITUDE SLOW-MOTION
ACCESSORY TRAY
F6MM
CASSINI C-80

7
HOW TO USE EYEPIECES & ACCESSORIES
1. FOCUSING TUBE - TURN FOCUSING WHEELS
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 RECEIVING END OF THE FOCUSING
TUBE. WE SUGGEST YOU ALWAYS BEGIN
WITH THE LOWEST POWER EYEPIECE (20MM).
THE LOWER THE NUMBER ON THE EYEPIECE,
THE HIGHER THE POWER YOUR TELESCOPE
WILL BE USING. ALSO AS YOU INCREASE
YOUR POWER YOU WILL DECREASE THE
FIELD OF VIEW AND THE BRIGHTNESS OF
YOUR TELESCOPE. WE SUGGEST YOU
ALWAYS USE THE LOWEST POWER REQUIRED
TO VIEW YOUR SUBJECT.
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.

8
MARS-EYE ELECTRONIC FINDER
MOUNTING & ALIGNMENT
TO MOUNT:
1) REMOVE MARS- EYE ELECTRONIC 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 MARS-EYE ELECTRONIC 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 MARS-EYE FINDER IS NOT THE OBJECT YOU SEE THROUGH
THE 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
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.

EYEPIECE POWER
20MM 40X
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
9
6MM 133X

CASSINI™
DIVISION OF COSMO BRANDS INC.
21230 SW 246th ST. HOMESTEAD FL 33031 USA
www.cosmosoptics.com
IF YOU NEED ANY FURTHER HELP WITH YOUR CASSINI TELESCOPE
PLEASE E-MAIL US AT [e-mail]
CASSINI™ Limited One Year Warranty
We guarantee to replace or, at our option, repair any products or parts thereof
which are found defective in material or workmanship during the first year from
date of purchase. Our obligation with respect to such products or parts shall be
limited to replacement or repair. In no event shall we be liable for consequential or
special damages or for transportation, installation, adjustment, or other
expenses which may arise in connection with such product or parts . The
customer shall be responsible for all costs of transportation and insurance, both
to and from CASSINI/COSMO BRANDS INC., and shall be required to prepay
such costs. No expenses, warranties and implied warranties, whether or not
merchantability of fitness for any particular use or otherwise ( except as to title)
other than these expressly set forth above which are made in writing and signed
by executive officer of our corporation.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES, IN NO EVENT SHALL THE
MANUFACTURER OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES
WHATSOEVER. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION
OR LI M I TAT I ON O F T HE P O SS IBILIT Y FO R C O N SE QU ENTIAL O R
INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU.