User manual BUSHNELL VOYAGER 78-6000

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Manual abstract: user guide BUSHNELL VOYAGER 78-6000

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[. . . ] VOYAGER® 6 INCH DOBSONIAN TELESCOPE MODEL 78-6000 9 1 8 2 3 4 7 6 5 1. 5. Rack & Pinion focusing System Reflector Body Altitude Bearing Dobsonian Side Panel Dobsonian Base (Azimuth Bearing) 6. 9. Carry Handle Primary Mirror Finderscope 1. 25" Format Eyepiec e Never Look Directly At The Sun With Your Telescope Permanent Damage To Your Eyes May Occur Thank you for purchasing the Bushnell Voyager Dobsonian Telescope!Your new telescope has been designed and crafted with the highest standards so that you may have years of enjoyment and use out of this wonderful window to the heavens. [. . . ] This telescope body comes preassembled from the factory and precollimated. Therefore collimation should not be required. However, due to its great importance there are a few steps that you can take to ensure that your telescope is properly collimated. Remove the 1. 25" Format Eyepiece (9) from the Rack and Pinion Focusing Mechanism (1). Look into the Rack and Pinion Focusing Mechanism (1) with the eyepiece removed. You will see the secondary mirror located a few inches inside the end of the telescope tube (nearest the Rack and Pinion Focusing Mechanism). Since it is a mirror, you will see a reflection of the large primary mirror (7). That mirror will show an image of the secondary mirror and your eye. Each image will be centered in a concentric set of images starting with the image of the Primary Mirror (7), the secondary mirror, and your eye. Please refer to the diagram to see what to expect. 3. 4. If the image of your eye is centered in the reflection of the secondary mirror, your secondary mirror is collimated. If it is off to one side, then secondary mirror adjustment will be required. By removing the plastic cap on the secondary mirror base at the end of the telescope tube nearest the Rack and Pinion Focusing Mechanism (1), you will see three screw heads. By adjusting these three screws very slowly and carefully, the secondary mirror will reflect an image of your eye that is perfectly centered in the reflection of the secondary mirror. Once this is accomplished replace the plastic cap. Your secondary mirror is now collimated. Once secondary mirror collimation is confirmed, you will need to verify Primary Mirror (7) collimation. If the image of the secondary mirror is centered in the reflection of the primary mirror, then your primary mirror is collimated. If it is off to one side, then Primary Mirror (7) adjustment will be required. By locating the Primary Mirror (7) you will see three screw heads on the bottom end of the telescope furthest from the Rack and Pinion Focusing Mechanism (1). They are alsopositioned 120 degrees apart. By adjusting these three screws very slowly and carefully, the Primary Mirror (7) will reflect an image of the secondary mirror that is perfectly centered in the reflection of the Primary Mirror (7). Once this is accomplished your Primary Mirror (7) is now collimated. [. . . ] www. bushnell. com ANSWERS TO COMMONLY ASKED QUESTIONS 1. The image I see in the telescope is upside down and reversed from right to left ?· An upside-down and reversed image is a common characteristic of most astronomical telescopes. Since telescopes are used for astronomical viewing orientation is not important. [. . . ]

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