Instruction/ maintenance manual of the product 8958 Orion
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INSTRUCTION MANUAL IN 361 Rev . A 9/09 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 ® Ritch.
2 Congratulations on your purchase of an Orion Ritchey-Chrétien astrograph! Astroimaging demands high contrast and center to edge image shar pness. The Ritchey-Chrétien optical sys - tem f eatures precision hyperbolic mirrors with an impressiv e reflectivity rat ing of no less than 94%.
3 to thread directly onto the optical tube. It may be useful to e xper iment with different combinations during the da y before heading out into the field.
4 T -ring 2” camera adapter 2” camera adapter StarShoot CCD Imager Focuser 2” extension Focuser 1” extension 2” extension 1” extension Focuser (w/ 1.
5 e xtension (1 x 1" and 1 x 2"). Larger 2" eyepieces may only require two inches of e xtension. Focusing the T elescope One of the e xciting new f eatures of the Or ion Ritchey- Chrétien optical tubes is the inclusion of the new linear bear- ing Cra yford f ocuser.
6 2. Slide the chrome por tion of the ey epiece into the star diagonal. 3. Tighten the setscrew on the star diagonal to hold the ey epiece in place. T o remov e the ey epiece, loosen the setscrew on the star diagonal and slide the ey epiece out. Y ou c an replace it with another ey epiece (purchased separately).
7 Optical Axis Adjustment These adjustments will require a 3mm and 2.5mm he x k ey . There are three sets of “push-pull” screws on the bac k-end of the optical tube where the focuser attaches (Figure 8). The optical axis is denoted b y a thin outline of light around the perimeter of the view through the collimating ey epiece.
8 Ca r e a nd Cle ani ng of the Optics Do not disassemble the Ritche y-Chrétien f or any reason, including to clean the mirror . A small amount of dust and par- ticulates on the mirror’ s surf ace will not aff ect performance.
9 One-Y ear Limited W arranty The Orion Ritchey-Chrétien Astrographs are warranted against defects in materials 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 8958 (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 8958 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 8958 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Orion 8958 you will learn all the available features of the product, as well as information on its operation. The information that you get Orion 8958 will certainly help you make a decision on the purchase.
If you already are a holder of Orion 8958, 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 8958.
However, one of the most important roles played by the user manual is to help in solving problems with Orion 8958. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Orion 8958 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
