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Secondary

mirror

Primary mirror

stop and keep your

hand here

Both mirrors aligned

with collimating cap in

Both mirrors aligned with

eye looking in focuser

Aligning the Primary Mirror

Find the three locking screws at the back of your telescope and loosen them by a few turns.

Adjusting screw

Locking screw

If you see 3 large nuts

protruding from the back of your

telescope

and

small

Phillip's-head screws besides

them, the Phillip's-head screws

are the locking screws and the

large nuts are the adjusting

screws.

If you see 3 flat

headed screws and 3

thumbscrews, the flat

headed screws are

the adjusting screws

and the thumbscrews

are

the

locking

screws.

hex bolt

(Locking screw)

Adjusting screw

If you see 3 hex bolts and 3 Phillip's head screws, the

hex bolts are the locking screws and the Phillip's-head

screws are the adjusting screws. You will need an Allen

wrench to adjust the locking screws.

Now run your hand around the front of your

telescope keeping your eye to the focuser,

you will see the reflected image of your hand.

The idea here is to see which way the primary

mirror is defected; you do this by stopping at

the point where the reflected image of the

secondary mirror is closest to the primary

mirrors' edge (Fig.q-5).
When you get to that point, stop and keep

your hand there while looking at the back end

of your telescope, is there an adjusting screw

there? If there is you will want to loosen it

(turn the screw to the left) to bring the mirror

away from that point. If there isn't an adjusting

screw there, then go across to the other side

and tighten the adjusting screw on the other

side. This will gradually bring the mirror into

line until it looks like Fig.q-6. (It helps to have

a friend to help for primary mirror collimation.

Have your partner adjust the adjusting screws

according to your directions while you look in

the focuser.)
After dark go out and point your telescope at

Polaris, the North Star. With an eyepiece in

the focuser, take the image out of focus. You

will see the same image only now, it will be

illuminated by starlight. If necessary, repeat

the collimating process only keep the star

centered while tweaking the mirror.

Fig.q-5

Fig.q-6

alternately loosen one and then compensate for the slack by tightening the other two. Stop when you see

all three mirror clips (Fig.q-4). Make sure that all three small alignment screws are tightened to secure the

secondary mirror in place.

Locking

screw

Adjusting

screw

Содержание EQ5

Страница 1: ...INSTRUCTION MANUAL Telescopes with NEQ3 EQ5 Mount 031007V3 ...

Страница 2: ... shown Altitude Adjustment T bolts Counterweight Rod Counterweight Counterweight Thumb Screw Azimuth Adjustment Knob Dec Lock Knob Tube Rings A B C D E F G H I J K L Dust Cap Mask Remove before Viewing Sun Shade Objective Lens Telescope Main Body Piggyback Bracket Finderscope Finderscope Bracket Alignment Screw Eyepiece Diagonal Focus Tube Focus Knob 1 2 3 4 5 6 7 8 9 10 11 12 Polarscope Holder no...

Страница 3: ...ustmentT bolts Azimuth Adjustment Knob Counterweight Counterweight Thumb Screw Counterweight Rod R A Lock Knob Dec Lock Knob Dec Control Knob Tube Rings a Tripod Leg Accessory Tray A B C D E F G H I J Dust Cap Mask Remove before Viewing Focus Tube Finderscope Finderscope Bracket Finderscope Adjustment Screws Eyepiece Focus Knob Piggyback Bracket Telescope Main Body Primary Mirror Position 1 2 3 4 ...

Страница 4: ... Eyepiece Diagonal Focusing Knob 1 2 3 4 5 6 7 8 9 R A Lock Knob Dec Flexible Control Cable Polarscope Holder Polarscope not shown optional Altitude Adjustment T bolt Azimuth Adjustment Knobs Counterweight Locking Thumb Screw Counterweight Rod Dec Lock Knob Dec Setting Circle a b Tripod Leg Accessory Tray Height Adjustment Clamp NEQ3 ...

Страница 5: ... to Observe Chooling the Telescope AdaptingYour Eyes Collimating a Newtonian reflector Collimating a refractor with the adjustable objective lens cell CleaningYour Telescope 6 10 6 6 7 7 10 10 11 11 12 12 13 13 13 14 16 18 19 19 19 19 19 20 22 22 8 8 9 9 19 20 Appendix A Precise polar alignment for Northern Hemisphere I Appendix B Optional Accessories III Appendix C Recommended Reading IV TABLE OF...

Страница 6: ...bscrews to secure 5 Replace the cap on the end of the counterweight rod INSTALLING THE CONTROL CABLES Fig 6 1 Slide the sleeve end of the cable over the nipple on the end of the worm gear Secure the cable by tightening the set screw against the flat surface of the nipple TRIPOD SET UP TELESCOPE ASSEMBLY Fig 7 Fig 8 ATTACHING THE MOUNTING PLATE Fig 7 1 Align the screws with the grooves on the side ...

Страница 7: ... assembly 4 Slide the finderscope bracket into the rectangular slot and tighten the screw to hold the mount in place 5 Position the finderscope into its mount by sliding it backwards until the rubber o ring seats in the finderscope mount reflector and Maksutov refractor reflector refractor and Maksutov ATTACHINGTHE FINDERSCOPE BRACKET RED DOT FINDER Fig 11 1 Locate the finderscope optical assembly...

Страница 8: ...accessory tray on top of the bracket and secure with the locking thumb screws from underneath Fig 19 Fig 20 Fig 21 Fig 22 Fig 23 Fig 24 Fig 18 Note The screws should align with the grooves in the side of the mounting bar INSTALLING COUNTERWEIGHT Fig 21 22 1 Locate counterweight rod 2 Screw counterweight rod into threaded hole on the end of the declination shaft Tighten locknut on the counterweight...

Страница 9: ...finderscope tube 3 Locate the finderscope optical assembly 4 Slide the finderscope bracket into the rectangular slot and tighten the screw to hold the mount in place 5 Position the finderscope into its mount by sliding it backwards until the rubber o ring seats in the finderscope mount reflector refractor reflector refractor ATTACHINGTHE FINDERSCOPE BRACKET Fig 27 1 Locate the finderscope optical ...

Страница 10: ...ky The Red Dot Finder is equipped with a variable brightness control azimuth adjustment control and altitude adjustment control Fig b The Red Dot Finder is powered by a 3 volt lithium battery located underneath at the front To use the Finder simply look through the sight tube and move your telescope until the red dot merges with the object Make sure to keep both eyes open when sighting Azimuth adj...

Страница 11: ... telescope mount and allows precise control of micro adjustment A balanced telescope is specially critical when using the optional clock drive for astrophotography The telescope should be balanced after all accessories eyepiece camera etc have been attached Before balancing your telescope make sure that your tripod is balanced and on a stable surface For photography point the telescope in the dire...

Страница 12: ...ude axis This allows polar alignment for your local latitude Fig e2 Fig f Altitude adjustment Azimuth adjustment Fig e Fig e1 Fig f1 Fig e2 Operating the NEQ3 mount The NEQ3 mount has controls for both conventional altitude up down and azimuth left right directions of motion These two adjustments are suggested for large direction changes and for terrestrial viewing The two azimuth adjustment knobs...

Страница 13: ...le reducing the field of view It expands the cone of the focussed light before it reaches the focal point so that the telescope s focal length appears longer to the eyepiece The Barlow is inserted between the focuser and the eyepiece in a reflector and usually between the diagonal and the eyepiece in a refractor or a maksutov Fig g With some telescopes it can also be inserted between the focuser a...

Страница 14: ......

Страница 15: ...rallel to the ground If so it is time to perform a meridian flip This is necessary to prevent your telescope from eventually colliding with the mount or tripod To do a meridian flip rotate your telescope 180 degrees in Dec and lock the Dec axis Now rotate your mount 12H in RA and lock the RA axis Using the setting circles to assist you will help you do this more accurately When finished you should...

Страница 16: ...nt the fewer Dec adjustments you will need to make Using the Setting Circles 0 2 4 6 10 8 1 1 0 23 23 22 22 21 21 4 2 2 20 20 3 3 4 9 8 10 11 12 Altair Vega Deneb SE E NE First you need to calibrate the RA axis Fig n To do this align your telescope to an object with known coordinates and then rotate the RA setting circle to show those coordinates Leave the setscrew unlocked at this point Your Dec ...

Страница 17: ...ck the RA setscrew by tightening it fully When you are ready to move on to the next object unlock the RA set screw then rotate the RA and Dec axes until you arrive at the desired coordinates Plane of local horizon Nadir Equatorial Mount Northern Hemisphere Mount aligned on North Celestial Pole Zenith Right Ascension Apparent movement of stars Plane of Celestial Equator Meridian Line Declination Ob...

Страница 18: ...lescope in mm by the magnification Exit Pupil Diameter of Primary mirror in mm Magnification For example a 200mm f 5 telescope with a 40mm eyepiece produces a magnification of 25x and an exit pupil of 8mm This combination can probably be used by a young person but would not be of much value to a senior The same telescope used with a 32mm eyepiece gives a magnification of about 31x and an exit pupi...

Страница 19: ...tivity The best conditions will have still air and obviously a clear view of the sky It is not necessary that the sky be cloud free Often broken cloud conditions provide excellent seeing Do not view immediately after sunset After the sun goes down the Earth is still cooling causing air turbulence As the night goes on not only will seeing improve but air pollution and ground lights will often dimin...

Страница 20: ...all Fig q 1 The secondary mirror is aligned by adjusting the three smaller screws surrounding the central bolt The primary mirror is adjusted by the three adjusting screws at the back of your scope The three locking screws beside them serve to hold the mirror in place after collimation Fig q 2 Aligning the Secondary Mirror Point the telescope at a lit wall and insert the collimating cap into the f...

Страница 21: ...pping at the point where the reflected image of the secondary mirror is closest to the primary mirrors edge Fig q 5 When you get to that point stop and keep your hand there while looking at the back end of your telescope is there an adjusting screw there If there is you will want to loosen it turn the screw to the left to bring the mirror away from that point If there isn t an adjusting screw ther...

Страница 22: ...igher power eyepiece while keeping the image centered The in focus star image will have a bright innermost point a slightly fainter inner ring and a fainter still outer ring that is hard to see Fig r 1 If it doesn t look like this or you can t reach focus then start with take out your star diagonal and look at the image slightly out of focus this will allow you to gauge the deflection A typical of...

Страница 23: ...G THE MOUNT Locate a distant object and place it under the cross at the centre of the polarscope reticule Rotate the mount in RA 180 degrees i e 12 hours on the RA setting circle Note the displacement of your target from the centre of the crosshairs Fig s 1 If it is not displaced at all it means your polar scope reticule is already properly aligned and you don t need to do any more If it is displa...

Страница 24: ...e with Polaris and the North Celestial Pole NCP the point in space at which you want to aim your polar axis to achieve an accurate polar alignment Kochab rotates around the NCP the way the hour hand rotates around a clock face but it takes Kochab nearly 24 hours to make one revolution We can use this behavior to help us achieve an accurate polar alignment quickly and simply First identify the brig...

Страница 25: ...ill allow several nights of observing 2x and 8x tracking speeds 2x and 4x for EQ1 model are available through the hand control ler Motor hand controller and battery case are included COLLIMATING EYEPIECE The Sky Watcher Collimation Eyepiece is ideal for precise collimation of Newtonians and refractors with an adjustable lenscells This special eyepiece fits into 1 focusers or diagonals Alignment is...

Страница 26: ... Them by Guy J Consolmagno and Dan M Davis Cambridge University Press New York 3rd edition 2000 IV Amateur Astronomy The Great Atlas of the Stars by Serge Brunier Constellation photography by Akira Fujii Firefly Books Willowdale ON Canada 2001 A Manual Of Advanced Celestial Photography by Brad D Wallis and Robert W Provin Cambridge University Press New York 1984 Astrophotography An Introduction by...

Страница 27: ......

Страница 28: ...o the receptacle labeled Dec out on the mount Fig 6 The hand control cable has a RJ 45 connector on both ends Plug one end into the hand control and the other into the outlet on the mount Locate the power cord Make sure that the power switch on the motor controller is OFF Plug the cigarette lighter end of the cable into the battery and the other into the motor controller 5 6 7 8 Fig 1 Fig 2 191206...

Страница 29: ...INSTRUCTION MANUAL SynScan TM 140303V4 Copyright Sky Watcher ...

Страница 30: ...er Speed 25 PART VII CONFIGURE THE HAND CONTRL 7 1 Display Keypad 26 7 2 Alignment Star Filter 26 7 3 Sorting Method of the Alignment Star List 26 7 4 Naming of Stars 26 Basic Operations Intermediate Operations PART VIII AUXILIARY FUNCTIONS PART IX CONNECTING TO A COMPUTER PART X UPDATING FIRMWARE PART XI ADVANCED FUNCTIONS PART XII USING A SYNSCAN GPS MODULE APPENDIX I ELIMINATING CONE ERROR 41 A...

Страница 31: ...e movements of the Declination Dec axis for an equatorial mount or altitude axis for an Alt azimuth mount In most cases pressing the RATE 2 key will invoke the operation of choosing a slewing speed The LCD screen will display Set Speed followed by the current speed as Rate x Press a number between 0 and 9 to select a new speed Press the ENTER key to return to the previous display If the user does ...

Страница 32: ...le in Southern Hemisphere Counterweight rod is at its lowest position The telescope points towards the Northern Celestial Pole in Northern Hemisphere or the Southern Celestial Pole in Southern Hemisphere To operate the SynScan hand control in Full Feature mode no particular home position is required To operate the SynScan hand control in Easy Tracking mode the mount should be setup as close to hom...

Страница 33: ...d mm dd yyyy format i e 10 24 2012 for Oct 24 2012 press the ENTER key to confirm and pro ceed to the next step Press the ESC key to return to the Geographic Coordinates step When Enter Time is displayed enter the current local time in 24 hour format i e 18 30 00 for 6 30pm Press the ENTER key to display the entered time in 12 hour for mat Press the ENTER key again to confirm and proceed to the ne...

Страница 34: ... by the hand control to prevent the objects drift in the FOV of the telescope PART III ALIGNMENT 3 Now users can use the direction keys to move the telescope to align with the 1st alignment star That is center the 1st alignment star in the FOV of the finder scope and then center it in the FOV of the telescope s eyepiece press ENTER key to confirm centering of the star and proceed to the next step ...

Страница 35: ...ning the 2nd Star Cancellation During Aligning Process 1 If the 1st alignment star is not a planet the LCD screen will display Choose 2nd Star other wise it will display Choose 1st Star 2 Use the scrolling keys to browse through a list of star names and press ENTER key to pick the one on the screen as the 2nd alignment star The mount will then automatically slew and point the telescope towards the...

Страница 36: ...gnment users may press the ESC key to stop the mount The hand control screen will display MOUNT STOPPED Press any key 2 Press any key and the SynScan hand control will ask the user to select another alignment star 3 Press the ESC key again the LCD screen will display Exit Alignment 1 YES 2 NO Press key 1 to exit the alignment process press key 2 to go back to choose an alignment star PART III ALIG...

Страница 37: ...then it is not necessary to choose the 3 star alignment to align the mount Use 1 star alignment or 2 star alignment instead The Brightest Star Alignment is designed for entry level users who cannot identify stars in the night sky and the 2 Star alignment is for users who know the names of the stars in the night sky Both alignment methods provide the same level of precision Rules for choosing align...

Страница 38: ...the 3 digits Messier index number which is between 1 and 110 Use the number keys on the keypad to enter a number at the cursor position Use the left or right direction keys to move the cursor A 3 digit number starting with a 0 is acceptable Ex 001 01 1 Press ENTER key to proceed to the next step The screen will display View Object Press the ESC key to return to the previous step Press the ENTER ke...

Страница 39: ...s refer to Section 5 1 for de tails PART V LOCATING OBJECTS 5 5 Locating SAO Stars 1 Choosing an Object 2 View Information on the Object 3 Locate the Object Press the OBJECT shortcut key The screen will display OBJECT LIST in the top row Use the two scrolling keys to browse the list until SAO Catalog is displayed and then press the ENTER key The screen will then display SAO Catalog SAO 0000xx to w...

Страница 40: ...d object PART V LOCATING OBJECTS Recalling Objects 1 Press the USER shortcut key The screen will display USER OBJECT Recall Object Press the ENTER key 2 Use the scroll keys to browse through a pre defined objects list which is indexed from 1 to 25 and then press ENTER If the selected object has not been defined before the SynScan hand control will stay at this step for the choosing of another obje...

Страница 41: ...s When a user asks the SynScan hand control to locate an object whose elevation exceeds the limits the SynScan hand control will display Target is over slew limits and will not start the mount slewing PART VI CONFIGURE THE TELESCOPE MOUNT 6 4 Enable Disable Auxiliary Encoder 6 5 Setting Autoguider Speed The screen will display Set Elev Limits in the top row and Upper XXX Xo at the bottom row Use t...

Страница 42: ... and Local Sidereal Time 8 5 Display Version Information 1 Press the MENU shortcut key 2 Use the scroll keys to select Date and press the ENTER key to edit the date Press the ENTER key to apply change or press the ESC key to exit Note The setting of the date is in mm dd yyyy format i e 10 24 2012 3 Use the scroll keys to select Time and press the ENTER key to edit the time Press the ENTER key to a...

Страница 43: ...lue is the polar alignment offset in azimuth These data is valid only after a 2 star alignment or a 3 star alignment PART VIII AUXILIARY FUNCTIONS 8 11 Synchronizing Encoders If the mount lost the correct position of any of its two axes for example the axis is manually moved the pointing accuracy will be poor when the SynScan hand control tries to locate an object Providing the base of the mount i...

Страница 44: ...mainly used to update the motor controller s firmware Access the menu UTILITY FUNCTION PC Direct Mode and press the ENTER key The screen will display PC Direct Mode Press ESC to exit Press and hold the ESC key more than 1 second to exit PC Direct Mode Users can still use the direction keys to move the telescope mount PART X UPDATING FIRMWARE 10 1 Hardware Requirements 10 2 Preparation 10 3 Updatin...

Страница 45: ... can park the telescope to keep the alignment data PAE data and PEC data and start observing in the next session without redoing the alignment and calibration Parking 1 Access the menu UTILITY FUNCTION Park Scope and press the ENTER key 2 The screen will display Park to Use the scroll keys to choose one from the following parking position and press the ENTER key Home Position Park the telescope to...

Страница 46: ...the end of the alignment the Syn Scan hand control will display the polar alignment error refer to Section 3 3 Users can use the data to determine whether it is necessary to adjust the polar alignment 2 Press the MENU shortcut key and then access to sub menu Alignment Polar Alignment press the ENTER key to proceed to the next step 3 The screen will display Select a Star Use the scroll keys to brow...

Страница 47: ...e same port on the camera 2 Using the multi purpose port on the SynScan hand control The SynScan hand control uses 2 pins The SHUTTER and COMMON pins in the dia gram of Appendix 3 of its multi purpose port to control the shutter release of a DSLR camera Users may use a proper shutter release cable to connect the SynScan hand control and a camera 1 Press the UTILITY shortcut key access to sub menu ...

Страница 48: ...atorial mount only All equatorial mount has periodic tracking error which is not critical for visual observing but might lower the picture quality of long exposure astrophotography The SynScan hand con trol has the periodic error correction PEC function to improve the tracking performance for astrophotography Depending on the model of the equatorial mount there are two types of PEC One is soft war...

Страница 49: ...ror If the pointing accuracy becomes poor and most of the error is on the R A axis that is the object can be brought back to the center of the eyepiece using the left or right di rection keys it means that the cone error of the telescope mount system is quite large If the telescope s optical axis is not perpendicular to the declination axis of the equatorial mount then there is cone error in the t...

Страница 50: ...f everything is fine the testing will go to Step 9 Otherwise the SynScan hand control will show EEPROM ERROR or Flash ERROR Press ENTER to continue in such case 9 Check keypad and other features The screen will display Key in the top row If a key is pressed the name of the key will be displayed The power voltage will be displayed on the bottom row of the screen Supported Mount EQ Mount and Alt Az ...

Страница 51: ...SynScan TM ...

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