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Инструкция по эксплуатации Bushnell, модель 78-6000

Производитель: Bushnell
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Название файла: 325a4727-1799-4545-bc4c-7c9d889b7d48.pdf
Язык инструкции:en
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ALIGNING FINDERSCOPE: 1. Look through low-power 1.25" format eyepiece (9) and establish a well-defined target (see focusing telescope section). 2. Looking through Finderscope (8), alternate tightening each Finderscope Adjustment Screw surrounding the Finderscope (8) in the Finderscope Mount until crosshairs of Finderscope (8) are precisely centered on the same object already centered in Main Telescope Tube's field of view as seen through the 1.25" Format Eyepiece (9). 3. Now, objects located first with the Finderscope (8) will be centered in the field of view of the main telescope as seen through the 1.25" Format Eyepiece (9). COLLIMATING THE TELESCOPE Good alignment or collimation of the telescope's optical components will guarantee the most optimum viewing. 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. 1. Remove the 1.25" Format Eyepiece (9) from the Rack and Pinion Focusing Mechanism (1). 2. 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. 3. Please refer to the diagram to see what to expect. 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. They are positioned 120 degrees apart. 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. 5. 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. 6. Your telescope is now ready to deliver the best images possible. Enjoying Your New Telescope 1. First determine your targeted object. Any bright object in the night sky is a good starting point. One of the favorite starting points in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become good targets. Saturn, Mars, Jupiter, and Venus are good second steps to take. 2. The first thing you need to do after assembling the telescope as planned is center the desired object in the finderscope's cross hairs. Provided you did a reasonable job aligning the finderscope, a quick look through the main telescope tube at low power should reveal the same image. With the lowest power eyepiece (the one with the largest number printed on it) you should be able to focus the same image that you saw through the finderscope. Avoid the temptation to move directly to the highest power. The low power eyepiece will give you a wider field of view, and brighter image--thus making it very easy to find your target object. At this point with a focused image in both scopes, you've passed the first obstacle. If you don't see an image after attempting to focus it in, you might consider aligning your finderscope again. Once you pass this step, you'll will enjoy the time spent ensuring a good alignment. Every object you center in the finderscope will be easily found in the main telescope tube, which is important for continuing your exploration of the night sky. 3. The low power eyepieces are perfect for viewing the full moon, planets, star clusters, nebulae, and even constellations. These should build your foundation. However, for more detail, try bumping up in magnification to higher power eyepieces on some of these objects. ...


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