SKY-WATCHER EQ5 Pro User Manual Download Page 1 | Manualshive

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091508 v2

Telescopes with EQ5 Mount

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Summary of Contents for EQ5 Pro

Page 1: ...091508 v2 Telescopes with EQ5 Mount ...

Page 2: ...ings G 8x50 Viewfinder or Red Dot Finder H Finderscope Bracket I Alignment Screw J Eyepiece K Diagonal L Focus Tube Draw Tube M Focus Knob MOUNT TRIPOD 1 Polarscope Holder 2 Altitude Adjustment T bolts 3 Azimuth Adjustment Knob 4 Counterweight Rod 5 Counterweight 6 Counerweight Thumb Screw 7 R A Control Knob 8 R A Lock Knob 9 Dec Lock Knob 10 Dec Control Knob 11 Mounting Plate 150mm 1200mm 12 Acce...

Page 3: ...cope Main Body I Primary Mirror Position MOUNT TRIPOD 1 Mounting Plate 200mm 1000mm 2 R A Control Knob 3 Polarscope Holder not shown 4 Altitude Adjustment T bolts 5 Azimuth Adjustment Knob 6 Counterweight 7 Counerweight Thumb Screw 8 Counterweight Rod 9 R A Lock Knob 10 Dec Lock Knob 11 Dec Control Knob 12 Accessory Tray 13 Tripod Leg A B C D E F 1 200mm 1000mm 2 3 4 5 6 7 8 9 10 11 G I H 3 ...

Page 4: ...iece E Diagonal F Focusing Knob MOUNT TRIPOD 1 R A Lock Knob 2 Dec Flexible Control Cable 3 Polarscope Holder Polarscope not shown optional 4 Altitude Adjustment T bolt 5 Azimuth Adjustment Knobs 6 Counerweight Locking Thumb Screw 7 Counterweight Rod 8 Dec Lock Knob 9 Dec Setting Circle 10 Accessory Tray 11 Hight Adjustment Clamp 10 11 A B C D E 1 2 3 4 F 9 8 7 6 5 ...

Page 5: ...F CONTENTS EQ5 PRO 5 Assembling Your Telescope 6 Tripod Set up 6 Mount Assembly 6 Telescope Assembly 7 Finderscope Assembly 7 Eyepiece Assembly 8 Telescope Assembly Attaching Mounting Plate 8 Operating Your Telescope 9 Aligning the Finderscope 9 Using the Red Dot Finder 9 Balancing the telescope 10 Using the leveling bubble 10 Operating the EQ5 Mount 11 Using the Barlow Lens 12 Focusing 12 Polar A...

Page 6: ...ong the primary locking shaft until it pushes against the tripod legs 2 Secure with the washer and locking knob ATTACHING MOUNT TO TRIPOD LEGS Fig 2 1 Align metal dowel on the tripod head with the gap between the azimuth adjustment knobs underneath the mount 2 Push the primary locking shaft up against the mount and turn the knurled knob underneath to secure mount to tripod Fig 3 TRIPOD SET UP Fig ...

Page 7: ... with the 10mm wrench provided 1 Locate the finderscope bracket Carefully remove the rubber o ring from the finderscope bracket 2 Position the o ring into the groove located approximately half way along the 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 ...

Page 8: ...e focus tube and re tighten the thumbscrew to hold the diagonal in place 3 Loosen the thumbscrews on the diagonal 4 Insert the desired eyepiece into diagonal and secure by re tightening the thumbscrews Fig 18 diagram applicable to both mounts Please attach the tube rings to the mounting plate as shown if the rings are not already attached TELESCOPE ASSEMBLY Fig 17 ATTACHING THE MOUNTING PLATE Fig ...

Page 9: ...t 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 adjustment contr...

Page 10: ... 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...

Page 11: ...fine adjustment of azimuth for polar alignment Use the altitude adjustment T bolts for altitude adjustments These allow fine adjustment for setting the mount to your local latitude Fig e1 In addition this mount has Right Ascension hour angle and declination direction controls for polar aligned astronomical observing Loosen the lock knobs to make large direction changes Use the control cables for f...

Page 12: ...escopes particularly when they haven t yet reached outside temperature Refocusing is almost always necessary when you change an eyepiece or add or remove a Barlow lens Fig g Using the Barlow lens optional A Barlow is a negative lens which increases the magnifying power of an eyepiece while reducing the field of view It expands the cone of the focussed light before it reaches the focal point so tha...

Page 13: ...th and the R A axis points roughly at Polaris Use the two azimuth adjustment knobs above the N to make fine adjustments in azimuth if needed Fig i2 For more accurate alignment look through the finderscope and centre the Polaris on the crosshairs Along the R A axis shaft the farther away from the back of the shaft that you are the more accurate you will be Fig i3 Even though the true celestial pole...

Page 14: ...ours and 21 minutes 15 hours and 40 minutes 1 minute 15 hours and 39 minutes Southern Hemisphere The quickest way to find objects is to learn the Constellations and use the finderscope but if the object is too faint you may want to use setting circles on an equatorial mount Setting circles enable you to locate celestial objects whose celestial co ordinates have been determined from star charts You...

Page 15: ...ck the setscrew just above it and rotate the dial until zero is aligned with the indicator cast into the metal just below the screw Tighten the setscrew to lock the dial Fig k1 The silver dial just below it is a calendar dial The months are numbered 1 12 The longest lines separate the months the middle length lines are ten days apart and the short lines between them are two days apart The black co...

Page 16: ...d 5 line Fig l If you observe from a significantly different longitude this setting will have to be changed At your viewing site set the mount without weights and scope facing North Adjust it to a convenient height for viewing and carefully level it Unlock the Dec clutch and rotate to Dec 0 then lock the Dec clutch Remove the cap from the bottom of the RA axis shaft and the plug from the top Set t...

Page 17: ...n alt azimuth mount which has been aligned to a celestial pole The wedge tilts the mount to an angle equal to the observer s Latitude and therefore it swivels around a plane which parallels the celestial and Earth s equator Fig m This is now its horizon but remember that part of the new horizon is usually blocked by the Earth This new azimuth motion is called Right Ascension R A In addition the mo...

Page 18: ... consider pointing the telescope to the western Fig o1 or eastern Fig o2 horizon If the counterweight is pointing North the telescope can be swivelled from one horizon to the other around the Dec axis in an arc that passes through the NCP any Dec arc will pass through the NCP if the mount is polar aligned It can be seen then that if the optical tube needs to be pointed at an object north or south ...

Page 19: ...ther on the counter weight bar so that the movement around both axes is smooth and no extra lateral force is applied to the axis bearings When the object is centred make sure the R A and Dec locks are both re tightened to hold the object in the field and allow tracking by adjusting only in R A Pointing at an object Pointing at an object for example to the South Fig q can often be achieved with the...

Page 20: ...e finderscope and focussing knobs loosen the tube rings holding the optical tube and gently rotate it Do this when you are going to view an area for while but it is inconvenient to do every time you briefly go to a new area Finally there are a few things to consider to ensure that you are comfortable during the viewing session First is setting the height of the mount above the ground by adjusting ...

Page 21: ...d of View Apparent Field of View Magnification 0 65 52 80X Choosing the appropriate eyepiece magnification 80X Focal length of the telescope Focal length of the eyepiece 800mm 10mm Calculating the magnification power The magnification produced by a telescope is determined by the focal length of the eyepiece that is used with it To determine a magnification for your telescope divide its focal lengt...

Page 22: ...e which also affects images Astronomy is an outdoor activity 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 improv...

Page 23: ...ert the collimating cap into the focuser in place of a regular eyepiece Collimation is a painless process and works like this Pull off the lens cap which covers the front of the telescope and look down the optical tube At the bottom you will see the primary mirror held in place by three clips 120º apart and at the top the small oval secondary mirror held in a support and tilted 45º toward the focu...

Page 24: ...mary 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 s5 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 poi...

Page 25: ...r eyepiece to acquire Polaris centre it using your slow motion controls Now switch to your next higher power eyepiece while keeping the image centred 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 t1 If it doesn t look like this or you can t reach focus then start with take out your star diagonal and l...

Page 26: ...26 APPENDIX A STANDARD TIME ZONES OF THE WORLD ...

Page 27: ...º apparent field of view allowing more sky objects to be viewed at one time They provide sharp images right across the field Rubber eyepieces are included for viewing comfort and to exclude extraneous light Available in 20mm 18mm Eye Relief 15mm 13mm Eye Relief 9mm 15mm Eye Relief 6mm 14 8mm Eye Relief 2 EYEPIECES These 2 50 8mm fully multi coated eyepieces offer exceptional value for the money Th...

Page 28: ...ind Them by Guy J Consolmagno and Dan M Davis Cambridge University Press New York 3rd edition 2000 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...

Page 29: ... an optical system Collimation is routinely needed in reflectors often in Catadioptric systems but seldom in refractors Field of View The maximum view angle of an optical instrument The number in degrees supplied by the manufacturer is the Apparent Field of View To find the True Field of View also known as the Actual Field of View divide the Apparent Field of View by the Magnification Finderscope ...

Page 30: ...usually made spherical or paraboloidal parabolic to focus the light rays Parabolic Mirror A parabolic or more accurately a paraboloidal mirror is ground to a shape which brings all incoming light rays to a perfect focus on axis Polar Axis A telescope mount s axis that is parallel with the earth s axis With a drive motor the motion of stars due to the earth s movement can be counteracted so that th...

Page 31: ...RONT OF THE TELESCOPE FOR VIEWING THE SUN WHEN OBSERVING THE SUN PLACE A DUST CAP OVER YOUR FINDERSCOPE OR REMOVE IT TO PROTECT YOU FROM ACCIDENTAL EXPOSURE NEVER USE AN EYEPIECE TYPE SOLAR FILTER AND NEVER USE YOUR TELESCOPE TO PROJECT SUNLIGHT ONTO ANOTHER SURFACE THE INTERNAL HEAT BUILD UP WILL DAMAGE THE TELESCOPE OPTICAL ELEMENTS ...

Page 32: ... 2008 Sky Watcher USA All rights reserved ...

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