Instruction/ maintenance manual of the product #9781 EON 72MM Orion
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Customer Support (800 ) 676-1343 E-mail: support@telescope.com Corporate Offices (831) 763-7000 89 Hangar W ay , W atsonville, CA 95076 INSTRUCTION MANUAL Providing Exceptional Consumer Optical Products Since 1975 Orion ® EON ™ Apochr omatic ED Refractors #9781 EON 72mm, #9927 EON 80mm, #9925 EON 120mm IN 326 Rev .
2 Figure 1a. The EON 72mm and 80mm ED Refractor optical tube assembly Congratulations on your purchase of an Orion ® EON ™ ED Apochromatic Refractor optical tube assembly . The e xceptional optical and mechanical quality of your EON refr actor will provide y ou with a pleasing telescope e xperi- ence.
3 2" Dual-Speed Crayford Focuser The high quality dual-speed 2" Cra yford focuser is one of the most impor tant components of your EON refractor . The Cra yf ord design allows f or smooth, precise focusing without any image shift that typical rack-and-pinion designs experi- ence.
4 3. Secure the barrel in place by fir mly tightening the thumbscrew on the 1.25" e y epiece adapter . T o attach a 2" diagonal or e xtension tube to your telescope: 1. Loosen the thumbscre w on the Crayf ord focuser’ s 2" ey epiece holder and remov e the 1.
5 Connecting the EON 72mm and 80mm to a T ripod or Mount The EON 72mm and 80mm hav e a built-in mounting b lock ready to connect to a sturdy camera tripod or telescope mount (Figure 7). The mounting block is threaded to accept a common 1/4"-20 stud found on almost any camera tripod.
6 Using Differ ent Eyepieces The EON refractors wor k well with vir tually any 1.25" or 2" ey epiece. Because the EON refractors implement high-qual- ity ED optics, the e y epieces y ou use should also ha ve e xcel- lent, fully multi-coated optics to utilize the full performance of the EON.
7 Car e & Maintenance Give your telescope reasonab le care and it will last a lifetime . When not in use, keep its dust cover on as well as the dust cap on the e yepiece opening. K eep the telescope inside the hard storage carr ying case when not in use.
8 One-Y ear Limited W arranty Th e Orio n EON Ref r ac to r is war r an t ed ag a in st d ef ect s in mate ri al s or w o rkm an sh ip f or a peri od o f one ye ar from the date of purchase. This warr anty is for the benefit of the original retail purchaser only .
An important point after buying a device Orion #9781 EON 72MM (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 #9781 EON 72MM 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 #9781 EON 72MM - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Orion #9781 EON 72MM you will learn all the available features of the product, as well as information on its operation. The information that you get Orion #9781 EON 72MM will certainly help you make a decision on the purchase.
If you already are a holder of Orion #9781 EON 72MM, 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 #9781 EON 72MM.
However, one of the most important roles played by the user manual is to help in solving problems with Orion #9781 EON 72MM. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Orion #9781 EON 72MM 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
