ORION TELESCOPES & BINOCULARS Observer II 70mm Altazimuth Refractor, Instruction Manual

The ORION TELESCOPES & BINOCULARS Observer II 70mm Altazimuth Refractor is a high-quality telescope perfect for exploring the celestial wonders. Enhance your stargazing experience by using the comprehensive Instruction Manual that can be downloaded for free from our website.

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INSTRUCTION MANUAL

IN 580 06/17

Orion

®

Observer

™

II 70mm

Altazimuth Refractor

#10275

Customer Support:

www.OrionTelescopes.com/contactus

Corporate Offices:

89 Hangar Way, Watsonville CA 95076 – USA

Copyright © 2017 Orion Telescopes & Binoculars

All Rights Reserved. No part of this product instruction or any of its contents may be reproduced, copied,

modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.

Providing Exceptional Consumer Optical Products Since 1975

®

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Summary of Contents for Observer II 70mm Altazimuth Refractor

Page 1: ...ate Offices 89 Hangar Way Watsonville CA 95076 USA Copyright 2017 Orion Telescopes Binoculars All Rights Reserved No part of this product instruction or any of its contents may be reproduced copied modified or adapted without the prior written consent of Orion Telescopes Binoculars Providing Exceptional Consumer Optical Products Since 1975 ...

Page 2: ...ease read them over thoroughly before getting started WARNING Never look directly at the Sun through your telescope even for an instant without a professionally made solar filter that completely covers the front of the instrument or permanent eye damage could result Young children should use this telescope only with adult supervision Table of Contents 1 Parts List 2 2 Assembly 4 3 Preparing the Te...

Page 3: ...3 Figure 1 The parts of the Observer II 70 Altaz telescope A P H I J K L F G C M D B O N E ...

Page 4: ...ay is attached to all three leg braces The tripod and yoke mount are now fully assembled Figure 6 Next you will install the telescope tube on the altazimuth yoke mount 5 With the optical tube G oriented relative to the yoke mount B as shown in Figure 7 line up the holes in the attachment plates on the side of the optical tube with the holes in the ends of the yoke mount 7a Then secure the optical ...

Page 5: ... be aligned with the main telescope This is easiest to do during daylight hours before observing at night Follow this procedure 1 First remove the dust cap P from the front of the tele scope 2 Then with the 25mm eyepiece already in the focuser from step 8 above point the telescope at a well defined land target e g the top of a telephone pole that s at least a quarter mile away When pointing the te...

Page 6: ...azimuth direction loosen the azimuth lock knob take hold of the telescope and gently rotate it to the desired position Then re tighten the azimuth lock knob To move the tele scope in the altitude direction loosen the altitude lock knob then move the tube up or down to the desired position Then retighten the altitude lock knob If the telescope moves too freely in the in the altitude direction then ...

Page 7: ...specially important for observing faint objects is good trans parency air free of moisture smoke and dust All tend to scat ter light which reduces an object s brightness Transparency is judged by the magnitude of the faintest stars you can see with the unaided eye 5th or 6th magnitude is desirable Cooling the Telescope All optical instruments need time to reach thermal equilibri um The bigger the ...

Page 8: ...e achieving ini tial focus rack the focuser drawtube all the way in using the focus wheels then while looking into the eyepiece slowly turn the focus wheels so that the drawtube extends outward Keep going until you see your target object come into focus Note that when you change eyepieces you may have to adjust the focus a bit to get a sharp image with the newly inserted eye piece What to Expect S...

Page 9: ...evealing more surface detail The filter threads into the bottom of the Kellner eye pieces that came with your telescope Figure 13 Barlow Lens A 2x Barlow lens doubles the magnify ing power of any eyepiece it s used with giving you a big power boost to get in closer to your target object You just insert it between the diagonal and the eyepiece Correct Image Diagonal Also called an erect image diago...

Page 10: ...aw your state or national statutory consumer rights governing the sale of consumer goods remain fully applicable For further warranty information please visit www OrionTelescopes com warranty Orion Telescopes Binoculars Corporate Offices 89 Hangar Way Watsonville CA 95076 USA Customer Support www OrionTelescopes com contactus Copyright 2017 Orion Telescopes Binoculars All Rights Reserved No part o...

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