background image

 

4. How to use and how to align the finderscope? 

 

4.1.

 A distant object is centered at the 

telescope’s field of view with an eyepiece. In this 
example we have a house with a chimney. The 
chimney is the reference point to place at the 
center of the field of view. We first look through 
the telescope with the lowest magnification 
possible (PL25mm should 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 
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 result. Make 
sure to tighten the 3 screws after finishing so that 
the finderscope tube does not move. 

 

 

 

4.3.

 After playing with the three findercope 

thumbscrews and some trial and error we get the 
finderscope recticle close to the center (in this 
case the chimney). The Finderscope is now ready 
to use! 

 

 

 

 

Summary of Contents for Gravity 150 EQ

Page 1: ...1 Instruction Manual Gravity 150 EQ English version 8 2014 Rev A...

Page 2: ...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 Sta...

Page 3: ...Figure 2 Assemble the tripod Figure 3 Place tray Figure 4 Place the Equatorial Head Figure 5 Thread the counterweight shaft Figure 6 Place the Hand Knobs Figure 7 Slide counterweight and the Foot Save...

Page 4: ...tighten Figure 9 Use the two knobs to prevent tube from sliding Figure 10 Remove the finderscope nuts Figure 12 The two axis locking knobs Figure 11 Place finderscope and thread the thumbnuts Figure 1...

Page 5: ...oking through the finderscope we see the same building but in this case the chimney is not centered We adjust the finderscope using the three thumbscrews so that the finderscope moves slightly This is...

Page 6: ...ator 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...

Page 7: ...Telescope focal length is 1400mm PL25 eyepiece focal length is 25mm 1400 25 56 This means that the PL25 eyepiece provides a 56x power magnification This seems low but try it you will see a a bright i...

Page 8: ...rd 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 ap...

Reviews: