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Accessory 

There is a large portfolio of Explore Scientific accessories available for your telescope. All Explore Scientific accessories meet 
the high quality standard that has made our brand famous.  
 

For  a  complete  overview  of  available  Explore  Scientific  accessories  please  refer  to  our  homepage  at 

www.explorescientific.de

 
Explore  Scientific  eyepieces:

  Our  eyepieces  do  not  only  provide  the  mangnification  you  desire,  but  also  give  you  a 

comfortable eye distance. Our eyepieces excel in their respective price class with elaborate coatings that boost contrast, a large 
apparent  field  of  view  and  excellent  image  sharpness.  Explore  Scientific  eyepieces  will  give  you  everything  you  want  from 
premium eyepieces. It is recommended to get a set of three or four eyepieces for different observing needs, like 9mm, 14mm, 
24mm and 30 mm so that you have a optimal choice for your whole usable magnification range. 

If you want to use 2“ eyepieces, 

please remove the reducer that is delivered with the focuser. 
 

Explore Scientific nebula filters with protocol 

The most irritating problem in the observation of dim objects outside the solar system  -  besides the seeing conditions 

– is the 

brightening  of  the  night  sky  due  to  artificial  lights.  Street  lights  and  other  lamps  are  brightening  the  naturally  black  sky.  As  a 
consequence the contrast and the visibility of deep-sky objects are seriously affected. Depending on the nature of the celestial 
object your can block some of the unwanted light and thus enhance the visibility of those objects in non-optimal sites.  
The  Explore  Scientific  nebula  filters  come  with  a  individual  test  protocol 

–  so  you  can  be  sure  to  get  excellent  filters.  The 

portfolio of Explore Scientific accessories is constantly improved 

– just have a look onto our homepage from time to time.  

 
Additional  useful  accessories  can  be  found  a  tour  internet  homepage  at 

www.explorescientific.de

,  in  the  ads  in  most  popular 

astro magazines and our other webshops like 

www.teleskope.com

 and www.optical-systems.com 

 
If  you  have  any  question  regarding  this  product,  please  call  our  customer  service.  In  case  of  the  unlikely  event  that  your 
telescope  needs  service  or  repair  at  our  facility,  please  contact  our  service  department  before  sending  anything  back.  Our 
service  will  also  give  you  the  address  of  the  service  department  and  will  help  you  with the  shipment.  Please  provide  your  full 
name. address and telephone number during the day so that we are able to contact you. The large majority of the service issues 
can be dealt with on the phone without sending anything back to us. 
 

Service Department: 

• Postal adress: 
Explore Scientific GmbH Kundendienst 
Gutenbergstraße 2 
DE-46414 Rhede/Westf. 
• E-Mail: 
[email protected] 
• Telephone: 
+49 (0) 28 72 - 80 74 310 
• FAX: 
+49 (0) 28 72 - 80 74 333 
 

 

 

Summary of Contents for Truss Tube Dobsonian Telescopes

Page 1: ...and it is very often painless you will react too slow and the permanent eye damage will already have taken place Never point your telescope or the finder scope at or near the sun Never look though yo...

Page 2: ...s and tricks Maintaining the optics Specifications Accessory Explore Scientific service All Explore Scientific telescopes and telescope accessories are subject to constant technical improvement Minor...

Page 3: ...scope parts overview 1 Focusser with 10 1 reduction 2 Secondary cage unit with secondary mirror 3 Collimation tool for the main mirror 4 Trusses 5 Altitude wheels 6 Rockerbox 7 Lid mirror box 8 Mirror...

Page 4: ...gure 2 Figure 2 The trusses are already assembled in four pairs At the bottom of the picture you will notice the collimation tool that will help you collimating the main mirror of the telescope Carefu...

Page 5: ...that contains the rocker box to the right On the outer left you can see one of the altitude wheels the stray light cover for the secondary cage is visible in the upper part of the box Remove all parts...

Page 6: ...e the warm room first This also prevents screws from vanishing in the grass when they fall down Place the mirror box onto a table in front of yourself We recommend to attach the altitude wheels to the...

Page 7: ...to the procedure since you have to hold the secondary cage with one hand and align the truss holes and the threaded hole of the secondary unit and insert the screw with the other hand If you are doing...

Page 8: ...ndary does not appear round tilt it with the three collimation screws that are located on the back side of the secondary holder 2 Next check the reflection of the middle point of the main mirror in th...

Page 9: ...10 Figure 11 Figure 9 Try turning the main mirror collimation screws when you are turning the right screw in the right direction you will notice that the comatic tail is getting shorter figure 10 Reme...

Page 10: ...head until you see the red dot of light that is projected onto the glass window Adjust the finder with the two screws until the red dot is on top of the object that is centered in the telescopes eyep...

Page 11: ...e lines are cloud bands in the atmosphere of Jupiter Even with low magnification 4 of the 67 moons of Jupiter are visible the so called Galilean moons Io Ganymed Europa and Callisto Because those moon...

Page 12: ...the meridian so that they are on their highest position possible If the image is dim or moving fast use a smaller magnification Using too much magnification is a mistake that is made very often by beg...

Page 13: ...coated aluminum with connectors Secondary spider 4 arm steel Main mirror 12 305 mm parabolic BK 7 like glass aluminum coated with protective layer Focal length 1524 mm Focal ratio f 5 Resolving power...

Page 14: ...ack sky As a consequence the contrast and the visibility of deep sky objects are seriously affected Depending on the nature of the celestial object your can block some of the unwanted light and thus e...

Page 15: ...llen is consumed by bacteria that will return the favor in form of acid excretion which will damage the coating c Organic dirt fingerprints etc can be removed from the optical surface with a mixture o...

Page 16: ...e void of the warranty you will get free offer about the repair costs Important shipping information Please try to avoid damage during transport by using the original boxes Please do not forget to add...

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