Instruction/ maintenance manual of the product 9527 Orion
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INSTRUCTION MANUAL IN 378 Rev . A 1/10 Customer Support (800 ) 676 -1 343 • E-mail: suppor t@telescope.com Corporate Offices (831) 763-7000 • 89 Hangar W ay , W atsonville, CA 95076 Orion ® 8" f/4.0 Newtonian Astr ograph #9527 Providing Exceptional Consumer Optical Products Since 1975 Orio nT e lesc opes.
2 Congratulations on your purchase of an Or ion ® 8" f/4.0 Newtonian Astrograph. It f eatures f ast, high- quality parabolic optics; a machined, dual-speed Cra yf ord f ocuser with linear-tr ack bearing; and e xcellent mechanical construction.
3 are M6. It is lik ely that only the center hole will be needed to attach the r ings to a dov etail plate f or your mount or for your guide scope assembly . Balancing the 8" f/4.0 Ne wtonian Astrogr aph is achie ved by sliding the dov etail mounting plate (sold separately) f or - ward or backw ard within the mount’ s dov etail saddle.
4 Using 1.25" and 2" Accessories The 2" f ocuser can accommodate both 1.25" and 2" accesso- ries, including just about any e yepiece or camera. Both the 2" collar and remov able 1.25" adapter feature a brass compres- sion r ing to hold your accessories in place without marring their metal barrels.
5 is centered on the crosshairs of the finder scope and in the telescope’ s e yepiece, the finder scope is aligned and ready to be used f or locating objects. The finder scope alignment should be chec ked bef ore ev er y imaging or observing session.
6 Imaging with the 8" f/4.0 Newtonian Astrograph This instr ument has f ast f/4.0 parabolic optics, which pro - duce br ight images and allow fairly shor t e xposure times. F ast optics also inherently produce some coma, or distor - tion of star images toward the peripher y of the field of view .
7 is a relatively easy process and can be done in da ylight or darkness. T o check collimation, remo ve the e yepiece and look do wn the f ocuser drawtube .
8 NO TE: The center ring sticker need not ever be remo ved from the primary mirror . Because it lies directly in the shadow of the secondary mirror , its presence in no way adver sely affects the optical performance of the tele - scope or the image quality .
9 By “ra dia l p osi tio n” w e me an the po sit ion of the se con dar y mirror along the axis per pendicular to the f ocuser drawtube, as shown in Figure 13 .
10 The view through the collimation cap should now resemble Figure 9e . A simple star test will indicate how well the tele - scope optics are collimated. Star-T esting the T elescope When it is dar k, point the telescope at a bright star and accu- rately center it in the eyepiece’ s field of view .
11 the Phillips-head screw is unthreaded, the secondar y mirror and its holder can be remov ed from the telescope. The sec - ondar y mirror does not need to be remov ed from its holder for cleaning. Then follow the same procedure described below f or cleaning the pr imar y mirror .
12 One-Y ear Limited W arranty The Orion 8" f/4.0 Newtonian Astrogr aph is warranted against def ects in mater ials or workmanship f or a period of one year from the date of purchase. This warr anty is f or the benefit of the or iginal retail pur - chaser only .
An important point after buying a device Orion 9527 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Orion 9527 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Orion 9527 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Orion 9527 you will learn all the available features of the product, as well as information on its operation. The information that you get Orion 9527 will certainly help you make a decision on the purchase.
If you already are a holder of Orion 9527, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Orion 9527.
However, one of the most important roles played by the user manual is to help in solving problems with Orion 9527. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Orion 9527 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
