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Manual Orion #8297 8" F/3.9

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  • Orion #8297 8" F/3.9 - page 1

    INSTRUCTION MANUAL IN 406 Re v . A 07/11 Customer Support (800) 676- 1 343 • E-mail: support@telescope.com C o rp o r at e O ff i c es ( 83 1 ) 76 3 - 7 00 0 • 89 Hangar W ay , W atsonville, CA 95076 © 2011 Orion T elescopes & Binoculars Orion 8" and 1 0" f/3.9 Newtonian Astr ographs #8297 8" f/3.9, #8296 10" f/3.9 Prov ...

  • Orion #8297 8" F/3.9 - page 2

    2 Congratulations on y our purchase of an Orion f/3.9 Ne wtonian Astrogr aph! These po werful imaging telescopes f eature “f ast, ” high-quality par abolic optics, a 2" dual-speed Cr a yf ord f ocuser , and e xcellent mechanical construction with some special f eatures . Optimized f or astrophotograph y with DSLR an d astronomical CCD imag ...

  • Orion #8297 8" F/3.9 - page 3

    3 packaging to ensure the telescope sta ys intact during shipping. T ake a moment to inspect the telescope and all of its par ts. Before pr oceeding with the instructions, refer to Figure 1 to familiarize your self with some of the features and com- ponents of the telescope. 1. Getting Star ted The telescope arrives nearly fully assembled from the ...

  • Orion #8297 8" F/3.9 - page 4

    4 Attaching the Finder Scope The included 9x50 crosshair finder scope (Figure 3a) is use- ful f or locating objects in the sky and centering them in the main telescope’ s field of vie w . T o install it, first remove the O-ring from the brac ket and place it ov er the body of the finder scope until it seats in the narro w groov e near the middle ...

  • Orion #8297 8" F/3.9 - page 5

    5 Cooling the T elescope All optical instruments need time to reach “thermal equilibri - um. ” The bigger the instrument and the larger the temperature change, the more time is needed. Allow at least 30 minutes f or your telescope to cool to the temper ature outdoors. In very cold climates (below freezing), it is essential to store the tele- sc ...

  • Orion #8297 8" F/3.9 - page 6

    6 Attaching a CCD Camera The Orion f/3.9 Newtonian Astrographs are equipped to accept CCD cameras with a 2" nosepiece, or a 2" coma cor - rector in place of the nosepiece, which slides directly into the telescope’ s f ocuser lik e an e yepiece (Figure 5). The 2" nosepiece is secured with the two thumbscre w locks . If your CCD imag ...

  • Orion #8297 8" F/3.9 - page 7

    7 cal tube in front of the f ocuser . Both the 8" and 10" models hav e added length in front of the f ocuser , compared to a stan- dard Newtonian, to pre v ent an y possibility of incoming light from impinging directly on the secondar y mirror or entering the f ocuser dra wtube. The baffle rings and the interior of the optical tube are bo ...

  • Orion #8297 8" F/3.9 - page 8

    8 The Collimation Cap Y our f/3.9 Newtonian Astrog raph comes with a “quic k collima- tion cap” (Figure 9) . This is a simple cap that fits on the f o - cuser dra wtube like a dust cap , but has a tiny hole in the cen- ter and a reflective inner surf ace. The collimation cap helps center your e y e ov er the f ocuser dra wtube so that aligning ...

  • Orion #8297 8" F/3.9 - page 9

    9 f or the time being. The secondary mirror itself should be cen- tered in the f ocuser dra wtube. If it is off-center along the axis of the telescope, i.e ., positioned too f ar tow ard the front open- ing or tow ard the rear of the telescope , as it is in Figure 8b , you will ha v e to adjust the mirror’ s axial position. T o do so, use a small ...

  • Orion #8297 8" F/3.9 - page 10

    10 of the three alignment set screws b y , sa y , one full tur n, and then tighten the other two to tak e up the slac k (Figure 13). Do not loosen the center screw during this process. The goal is to center the primar y mirror reflection in the secondary mir- ror , as in Figure 8d . When it is centered, y ou’ re done adjust - ing the secondar y m ...

  • Orion #8297 8" F/3.9 - page 11

    11 cap on the ey epiece opening. K eep the telescope inside the hard storage carrying case when not in use. Store it indoors or in a dry garage. Do not leave the telescope outside e xcept when using it. The optical tube is aluminum and has a smooth anodized surf ace that should resist scratches and sm udges. If a scratch does appear on the tube, it ...

  • Orion #8297 8" F/3.9 - page 12

    4. Specications Orion 8" f/3.9 Newtonian Astrograph Optical configuration: Newtonian reflector Aper ture: 203mm F ocal length: 800mm F ocal ratio: f/3.9 Primar y mirror: Low thermal expansion optical glass , parabolic figure Mirror coatings: Enhanced aluminum (94% reflectivity) with SiO 2 ov ercoat Secondar y mirror minor axis: 70mm F ocuse ...

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Documents that we receive from a manufacturer of a Orion #8297 8" F/3.9 can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Orion #8297 8" F/3.9.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Orion #8297 8" F/3.9, service manual, brief instructions and user manuals Orion #8297 8" F/3.9. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Orion #8297 8" F/3.9.

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A complete manual for the device Orion #8297 8" F/3.9, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Orion #8297 8" F/3.9 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Orion #8297 8" F/3.9.

A complete Orion manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Orion #8297 8" F/3.9 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Orion #8297 8" F/3.9, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Orion #8297 8" F/3.9, that we can find in the current document
3. Tips how to use the basic functions of the device Orion #8297 8" F/3.9 - which should help us in our first steps of using Orion #8297 8" F/3.9
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Orion #8297 8" F/3.9
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Orion #8297 8" F/3.9 in a specific country, if it was not possible to solve the problem on our own.

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