Orion Express 80mm refractor telescope Instruction Manual Download Page 1

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$Orion Express 80mm refractor telescope Instruction Manual Download Page 1$

instruction Manual

IN 259 Rev. A 6/05

Providing Exceptional Consumer Optical Products Since 1975

customer support (800)‑676‑1343
E‑mail: [email protected]

Corporate Offices (831)‑763‑7000
P.O. Box 1815, Santa Cruz, CA 95061

orion

Express

™

80mm

refractor telescope

#9780 Optical Tube Assembly

Summary of Contents for Express 80mm refractor telescope

Page 1: ...ding Exceptional Consumer Optical Products Since 1975 Customer Support 800 676 1343 E mail support telescope com Corporate Offices 831 763 7000 P O Box 1815 Santa Cruz CA 95061 Orion Express 80mm Refr...

Page 2: ...2 Focus wheel Mounting block Objective lens 1 25 Eyepiece adapter Focuser drawtube Focuser rotation thumbscrew Lens shade Figure 1 The Express 80mm optical tube assembly...

Page 3: ...celestial coordi nates right ascension and declination which can be found in many observing books and star atlases Installing a Diagonal and Eyepiece The Express 80mm can be used with 2 or 1 25 eyepie...

Page 4: ...elescope by the focal length of the eyepiece Magnification Telescope F L Eyepiece F L For example the Express 80mm which has a focal length of 480mm used in combination with a 10mm eyepiece yields a p...

Page 5: ...become reasonably familiar with the night sky Unless you know how to recognize the constellation Orion for instance you won t have much luck locating the Orion Nebula A simple planisphere or star whee...

Page 6: ...oo distant to show significant detail even in very large telescopes but you will be able to pick them out from the background stars by their amazing blue green color Using Filters A wide variety of fi...

Page 7: ...e s objective lens Never use regular glass cleaner or cleaning fluid designed for eyeglasses Before cleaning with fluid and tissue however blow any loose particles off the lens with a blower bulb or c...

Page 8: ...angar Way Watsonville CA 95076 If the product is not registered proof of purchase such as a copy of the original invoice is required This warranty does not apply if in Orion s judgment the instrument...