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Instruction Manual 

 

Summary of Contents for Dobson 102/640 DOB

Page 1: ...1 Instruction Manual...

Page 2: ...from the object and reflects it to the secondary mirror that brings it to the eyepiece Close to the aperture there is the focuser The focuser moves up and down to get a precise focused image At the f...

Page 3: ...3 ATTENTION Never look at the Sun through a telescope Concentrated Sun light may cause serious eye injury Children should use only with adult supervision...

Page 4: ...ts Figure 3 Place the finderscope ask shown Figure 4 Insert a low power eyepiece H20mm Figure 5 Tighten the side thumbscrew to secure eyepiece Figure 6 Use the barlow with eyepiece Figure 7 Tighten bo...

Page 5: ...be preferrable So we have the widest field of view 4 2 Looking through the finderscope we see the same building but in this case the chimney is not centered We adjust the finderscope using the two th...

Page 6: ...ator between illumated and dark surfaces 5 2 Jupiter is the biggest planet of our solar system It is also on of the favorite targets for beginners Galileo was able to discover that the four tiny dots...

Page 7: ...epiece focal length Lets give an example for our telescope and the supplied eyepieces Telescope focal length is 640mm H20 eyepiece focal length is 20 mm 640 20 32 This means that the H20 eyepiece prov...

Page 8: ...agnified the image is the darker it gets Q Is my telescope compatible with other eyepieces A Omegon telescopes are compatible with all telescope eyepieces from different manufacturers as long as the e...

Page 9: ...thing when I look through my telescope A The telescope is only suitable for astronomical observing and when used outside at night Observing from inside the house or during the day is not usually possi...

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