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6. Troubleshooting and frequently asked questions 

Q: I can’t get to focus my telescope, only get a bright circle.

 

R: Make sure you have inserted the Diagonal and an eyepiece (start by the lowest power eyepiece – 
H20). Point to a distant object during the day and proceed as described in 4. 

Q: I get a mirrored view of the objects. Like if they were reversed, and 

show up like 

ᴙ 

R: This is caused by the Diagonal Mirror. It has a mirror inside. To get a corrected image it is 
necessary to use the Erecting Lens and the Eyepiece as shown below. 

 
Q: When I use the barlow lens and the H6 eyepiece the image is so dark I can’t hardly see anything. 

A: Power should be used with moderation. It depends on how stable the atmosphere is, too much 
turbulence causes image distortion. Usually the limit is 2x for each millimeter of the telescope 
aperture. In this case this telescope, the telescope has an aperture of 70mm so in a very good night 
you should be able to reach 140x. The more magnified the image is the darker it gets.

 

Q: Is my telescope compatible with other eyepieces ? 

A: Zoomion telescopes are compatible with all telescope eyepieces from different manufacturers as 
long as the eyepiece is a 1.25” (or 31.75mm) size eyepiece. If you would like to test an eyepiece from 
a fellow astronomer go ahead. Different eyepieces provide different visual experiences.

 

Q: I want to use my telescope to take pictures 

A: This telescope is designed for visual use. It doesn’t mean it can’t be used for photography, however 
it will be hard to get high quality pictures with this telescope. If you have a smartphone you can shoot 
the Moon or some terrestrial objects. Search online for digiscoping and afocal photography. 

Q: The stars only appear as points in the telescope

 

A: Stars will always appear only as points, even in the largest telescopes in the world. It is more 
interesting for  beginners to observe two-dimensional objects, such the moon or planets. Once you 
find these, you will be  able to start learning about the astronomical calendar. 

Q: I would like to observe the Sun

 

A: An appropriate solar filter, placed over the objective, is essential for observing the sun. These are 
available  as plastic foil or glass filters. They allow only a tiny and harmless fraction of sunlight into 
the telescope   when securely positioned over the objective, so allowing you to observe the sun in 

Summary of Contents for Cassini 76 DOB

Page 1: ...1 Instruction Manual Cassini 76 DOB English version 8 2014 Rev A ...

Page 2: ...he focuser The focuser moves up and down to get a precise focused image At the focuser one can use the supplied accessories Different accessories combinations give different results such as different image magnifications or correct image for example But all this will be explained in detail in the next pages 3 Assembly Your telescope comes fully assembled The tube and the dobsonian mount were assem...

Page 3: ... page 5 If friction adjustment is required in the azimuth axis use a nut wrench not supplied to release or tighten the axis nut figure 3 Figure 2 Telescope pointing up at the zenith Figure 3 Adjust telescope movement on the central nut Figure 4 Hand knob to fix the telescope Figure 5 Insert the eyepiece in the focuser and tighten the side thumbscrew Figure 6 Erecting eyepiece for terrestrial view ...

Page 4: ...nator between illumated and dark surfaces 4 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 that turn around the planet were in fact part of Jupiters system of moons With this telescope you will be able not only to see Jupiter s planet disc with its two major discernible bands but also its ...

Page 5: ... example for our telescope and the supplied eyepieces Telescope focal length is 300mm H20 eyepiece focal length is 20 mm 300𝑚𝑚 20𝑚𝑚 15 𝑝𝑜𝑤𝑒𝑟 This means that the H20 eyepiece provides a 15x power magnification This seems low but try it you will see a a bright image with some very good detail 5 2 Barlow Lens The barlow lens is a very interesting device It is a negative lens that multiplies the teles...

Page 6: ...copes are compatible with all telescope eyepieces from different manufacturers as long as the eyepiece is a 1 25 or 31 75mm size eyepiece If you would like to test an eyepiece from a fellow astronomer go ahead Different eyepieces provide different visual experiences Q I want to use my telescope to take pictures A This telescope is designed for visual use It doesn t mean it can t be used for photog...

Page 7: ...e for astronomical observing and when used outside at night Observing from inside the house or during the day is not usually possible The dust caps must first be removed and an eyepiece inserted before you can start observing Are you sure you have you removed all the dust caps not just the small ones If you have not then no light will enter the telescope and everything will appear black Annotation...

Page 8: ...8 nimax Gmbh Otto Lilienthal Str 9 D 86899 Landsberg am Lech ...

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