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2.2.2. Setting the findescope to the optical tube. To set the finderscope to the optical tube start by 
removing the two thumbnuts from the respective screws and face the finderscope as shown. The 
finderscope is used to aim the telescope to a target (like in a riffle) - figure 11 and figure 12.

 

 
Align the finderscope before using the telescope - 
please look for instructions in Annex A. 
2.2.3. Setting the prism and eyepiece to the focuser.  
Simply slide the prism’s (f) metal barrel to the 
focuser’s tube and fix using the two focuser’s 
thumbscrews. Turn the screws so that the prism and 
eyepiece do not fall or slide when observing. Choose 
the K20mm eyepiece (e) and fix it to the prism too – 
figure 13. 
 

Your telescope should look like in figure 14. 

 
3. First steps. 
3.1. Learning to focus. 
Make sure to get used to use 
the telescope during daytime. This is a great 
telescope for terrestrial viewing too. Remove the 
dust cap from the telescope’s objective. Point to an  
object – at least half a mile (800 metres) away, it can 
be a tree or a building. Make sure never to point to 
the Sun (or its vicinity without using a full aperture 
Sun filter).
  
Now rack the focuser all the way in. Use the Knob 
(focuser) (9) and slowly start racking-out the 
drawtube (5). This will expose the chromed draw-
tube (5). Look through the eyepiece when doing this. 
A sharp image will start to form. The point where 
the image is very sharp is the focus. Use first the 

Figure 11. 

Figure 12. 

Figure 13. 

Figure 14. 

Summary of Contents for AC 70/400 BackPack AZ

Page 1: ...Instructions Manual Omegon AC 70 400 BackPack AZ English version 3 2017 Rev A Art Nr 53090...

Page 2: ...two main parts of the telescope It has a glass lens objective 1 at one end The objective gathers light from objects This telescope has a 70mm 2 7 objective this is the lens diameter On the opposite e...

Page 3: ...ed to their minimum It s recommend using the collapsed tripod on a table top for more comfort and stability 1 2 2 Camera base A The tripod s camera base A is compatible with most photo and video camer...

Page 4: ...al tube to the tripod Proceed as mentioned before in 1 2 6 by tilting the telescope base A Use the Lock tilt I to tighten firmly the optical tube to the tripod The telescope dovetail 10 is also Vixen...

Page 5: ...Choose the K20mm eyepiece e and fix it to the prism too figure 13 Your telescope should look like in figure 14 3 First steps 3 1 Learning to focus Make sure to get used to use the telescope during da...

Page 6: ...ratches are usual in good condition for Sun observation 3 2 1 Fitting the solar filter to the telescope Now that the filter 3 2 fit it to the telescope as shown The filter should have a tight fit to t...

Page 7: ...ator between illuminated and dark surfaces 5 2 Jupiter is the biggest planet of our solar system It is also one of the favorite targets for beginners Galileo was able to discover that the four tiny do...

Page 8: ...e finderscope using the three thumbscrews so that the finderscope moves slightly This is enough to correct the objects position in the finderscope Trial and error is required to get a satisfactory res...

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