User manual BUSHNELL 78-6114 (QVC EXCLUSIVE)

[. . . ] Most noted features are its dark stripes or bands both above and below its equator. Look at different times of the year and try to catch a glimpse of the white polar ice caps. At times Venus appears brilliantly in the night sky, just as if you were looking at a distant crescent moon. Nebulae--The Great Orion Nebula is a very well known night sky object. [. . . ] If the object you lined up in the telescope is not visible, adjust the two adjustment screws and move the finderscope around until you see it. Your finderscope is now operational. QVC 78-6114 Telescope 1LIM. indd 5 9/6/2006 3:02:26 PM FINDING OBJECTS 1. Loosen the altitude locks on the sides of the telescope tube and the silver azimuth lock on the base of the altazimuth mount, then move the telescope in the desired direction. Look through the finderscope and pan the telescope until the object appears in the field of view. Once it's in the field of view, tighten the altitude and azimuth locks. Once you have found an object in the telescope, turn the focus knob until the image is sharp. To focus on an object that is nearer than your current target, turn the focusing knob toward the eyepiece (i. e. , so that the focus tube moves away from the front of the telescope). For more distant objects, turn the focus knob in the opposite direction. To achieve a truly sharp focus, never look through glass windows or across objects that produce heat waves, such as asphalt parking lots. The magnification (or power) of a telescope varies depending upon the focal length of the eyepiece being used and the focal length of the telescope. To calculate magnification, use the following formula, in which FL = focal length: Magnification = FL (telescope) in mm FL (eyepiece) TECHNICAL SPECIFICATIONS Objective Diameter: Focal Length: Eyepieces: Erecting Eyepiece: Barlow: Maximum Magnification: Accessories: 114mm (4. 5") 500mm H20mm (Low Power) H12. 5mm (High Power) 1. 5X 3X 120X Finderscope, moon map, astronomy CD EYE LENS CHART & THEORETICAL POWER LIMITS H12. 5mm Eye Lens Power: H20mm Eye Lens Power: 40X 25X NOTE: Magnification is calculated magnification. Low power is recommended for most viewing conditions. QVC 78-6114 Telescope 1LIM. indd 6 9/6/2006 3:02:26 PM ENJOYING YOUR NEW TELESCOPE 1. 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. The first thing you need to do after assembling the telescope as planned is center the desired object in the finderscope. 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. 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. [. . . ] For best results and fewer vibrations set your telescope up on a level location on the ground rather than your concrete driveway or your wooden deck. This will provide a more stable foundation for viewing, especially if you've drawn a crowd with your new telescope. You'd be surprised how much more you'll see from your local lake or park when compared to a backyard in the city. Waiting until the object rises well above the horizon will provide a brighter and crisper image. [. . . ]