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Orion 9925 manual

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Table of contents for the manual

  • Page 1

    INSTRUCTION MANUAL Orion ® EON ™ Apochr omatic ED Refractors #9781 EON 72mm, #9927 EON 80mm, #9925 EON 120mm IN 326 Rev . B 05/09 Customer Support (800)-676-1343 E-mail: support@telescope.com Corporate Offices (831)-763-7000 89 Hangar W ay , Watsonville, CA 95076 Orion T elescopes.com Providing Exceptional Consumer Optical Products Since 1975[...]

  • Page 2

    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 experi- ence. The ED glass in the objective lens yields e x[...]

  • Page 3

    3 2" Dual-Speed Crayford Focuser The high quality dual-speed 2" Cra yford f ocuser is one of the most impor tant components of your EON refractor . The Cra yf ord design allows for smooth, precise focusing without any image shift that typical rack-and-pinion designs e xperi- ence. F or quick f ocusing of y our EON refractor , the two larg[...]

  • Page 4

    4 3. Secure the barrel in place by firmly tightening the thumbscrew on the 1.25" e y epiece adapter . T o attach a 2" diagonal or extension tube to y our telescope: 1. Loosen the thumbscrew on the Crayf ord focuser’ s 2" ey epiece holder and remov e the 1.25" eyepiece adapter . 2. Inser t the barrel of your diagonal or extensi[...]

  • Page 5

    5 Connecting the EON 72mm and 80mm to a T ripod or Mount The EON 72mm and 80mm hav e a b uilt-in mounting bloc k 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. T o connect the EON 72mm or 80mm to a camera tripod, simply [...]

  • Page 6

    6 Using Differ ent Eyepieces The EON refractors work well with vir tually any 1.25" or 2" ey epiece. Because the EON refractors implement high-qual- ity ED optics, the e yepieces you use should also hav e excel- lent, fully multi-coated optics to utilize the full performance of the EON. The diagonal used should also be a quality 90° mirr[...]

  • Page 7

    7 Car e & Maintenance Give your telescope reasonab le care and it will last a lifetime . When not in use, keep its dust cov er on as well as the dust cap on the eyepiece opening. K eep the telescope inside the hard storage carr ying case when not in use. Store it indoors or in a dry garage. Do not lea ve the telescope outside except when using [...]

  • Page 8

    8 One-Y ear Limited W arranty Th e Orio n E ON Refr act or is w arr ant ed agai nst de f ect s in ma te ria ls or wo rkm an sh ip f or a p eri od of on e y ea r from the date of purchase. This warranty is f or the benefit of the original retail purchaser only . During this war - r an ty p eri o d O rion T el es cope s & Bi no cu lars w il l re [...]