Orion #8296 10" F/3.9 instruction manual I N S T R U C T I O N M A N U A L, OrionTelescopes.com

Models: #8296 10" F/3.9 #8297 8" F/3.9

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Newtonian Astrographs

#8296

Providing Exceptional Consumer Optical Products Since 1975

IN 406 Rev. A 07/11

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Contents

#8297 8 f/3.9, #8296 10 f/3.9 I N S T R U C T I O N M A N U A LCustomer Support 800 676-1343 E-mail support@telescope.com Orion 8 and 10 f/3.9 Newtonian AstrographsOptical tube assembly Optical tube dust cap 1.25 eyepiece holder Parts ListCooling accelerator fan and battery holder batteries not included 9x50 finder scope with bracket Pair of hinged tube ringsAttaching the Telescope to a Mount 1. Getting Started2 Dual-Speed Crayford Focuser Fine FocusFocusing the Finder Scope 2. Operating Your Orion f/3.9 Newtonian AstrographAttaching the Finder Scope Aligning the Finder ScopeUsing the Cooling Fan Fan InstallationCooling the Telescope Mirror Cooling FanAttaching a DSLR Camera Attaching a CCD CameraRemoving the Piggyback Camera Adapter from the Tube Ring Visual Observing with the f/3.9 Newtonian Astrograph b.c d.eCollimating the Optics Aligning the Mirrors The Collimation Cap Adjusting the Secondary Mirror’s Axial PositionThe Primary Mirror Center Mark Preparing the Telescope for CollimationAdjusting the Secondary Mirror’s Rotational Position Adjusting the Secondary Mirror’s Radial PositionAdjusting the Secondary Mirror’s Tilt Star-Testing the Telescope 3. Care & MaintenanceAligning the Primary Mirror Out of collimation Cleaning MirrorsCollimated Orion Telescopes & Binoculars OrionTelescopes.com 4. Specifications89 Hangar Way, Watsonville CA One-Year Limited Warranty