Coleman AT50 Instruction & Owner'S Manual Download | Manualshive

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Please retain the packaging and instructions for further reference, as they contain important information.

AT50

I N S T R U C T I O N S & O W N E R ’ S M A N U A L

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Summary of Contents for AT50

Page 1: ...Please retain the packaging and instructions for further reference as they contain important information AT50 I N S T R U C T I O N S O W N E R S M A N U A L ...

Page 2: ...vides views of the moon and planets as well as dozens of galaxies star clusters and nebulae As a terrestrial land telescope the AT50 brings the world s natural wonders closer It delivers superb scenic views and allows for observation of animals and landscapes from a distance To obtain the best performance from your telescope please carefully read this manual For use by an adult or under the superv...

Page 3: ...PARTS LIST FOR AT50 Telescope Specifications colors packaging and or contents of this manual are subject to change without notice WARNING CHOKING HAZARD Small parts Not suitable for children under 3 years ...

Page 4: ...optical tube to the tripod and secure it in place by tightening the fixing screw DO NOT OVERTIGHTEN 5 Remove the diagonal mirror 4 from the box Insert it into the focusing tube 3 Secure the diagonal mirror in place by tightening the set screw See Illustration 1 Illustration 1 6 Remove either the H12 5 or SR4 eyepiece 5 from its protective case Insert the eyepiece into the diagonal mirror Secure th...

Page 5: ... terrestrial objects When using the telescope to observe terrestrial objects objects on earth the image will appear reversed mirror image or upside down This is normal for any astronomical telescope For viewing celestial objects a mirror image is acceptable since there is no upside down or left to right in space However when viewing terrestrial objects you may wish to correct the image by insertin...

Page 6: ...ject you wish to view adjust the elevation up and down angle This is done by loosening the fixing screw and gently moving the telescope up or down until it is aligned with the object to be viewed 3 Look through the finderscope 6 and refine the elevation as described above Center the object in the field of view You may also adjust the finderscope by simply releasing one of the small adjusting screw...

Page 7: ...tion power should be used for highly detailed observations of the moon Jupiter Saturn or any object that is quite bright The highest magnification power of the Barlow lens with a 4mm eyepiece combination should only be used for large or bright objects such as the moon and the brightest planets D ABOUT YOUR REFRACTOR TELESCOPE Your telescope has a refractor type optical design It uses lenses to gat...

Page 8: ...idest angle and the brightest sharpest views Adjust the angle and position of the telescope as outlined in the previous sections When possible avoid sudden temperature changes as the moisture in the air will condense on the mirrors and eyepiece lenses Should this occur after bringing your telescope indoors remove the dust caps and allow the moisture to evaporate naturally Point the telescope downw...

Page 9: ...TICAL SURFACES If after several attempts you cannot remove the particles take the telescope to an optical professional for cleaning If you keep the dust caps on your telescope when it is not in use and avoid handling the lenses or mirrors only minimal optical maintenance of your telescope should be required Extensive cleaning is usually only necessary every few years H WHAT TO LOOK FOR IN THE NIGH...

Page 10: ... to actually see one of the moons disappear either in front of or behind Jupiter as it orbits around the planet Another great feature of Jupiter is its cloud belt Jupiter is alive with weather activity and its clouds have formed over time into belts visible through telescopes in the right atmospheric conditions Saturn the second largest planet is not as bright as Jupiter and so its moons are not a...

Page 11: ...ly that you are using an eyepiece that is too powerful To solve this problem always start with the lowest power eyepiece at first and only insert the higher power eyepiece after you have located an object 3 When I use my high power eyepiece everything looks much darker Why As magnification in a telescope increases brightness diminishes Conversely brightness increases when magnification is reduced ...

Page 12: ...12 Elite Brands Inc 499 Seventh Avenue North Tower 17th Flr New York NY 10018 Tel 1 800 441 1100 2014 Elite Brands Inc New York NY 10018 2014 ...

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