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11. Dismantling the Telescope

Hopefully  your  observation  session  will  have 
been  interesting  and  successful;  afterwards, 
it  is  recommended  to  store  the  telescope  in 
a dry and well-ventilated room. Please do not 
forget  to  place  the  lens  caps  back  onto  the 
front  tube  opening  and  the  eyepiece  holder. 
All eyepieces and optical accessories should 
also be stored in their respective containers.

TIP:

The inverting lens is not suitable for astrono-
mical  observation.  Here,  work  with  just  the 
zenith mirror and an eyepiece. For terrestrial 
observations and for viewing nature, you may 
use the inverting lens with an eyepiece.

Problem

Solution

No image

Remove lens cap from lens opening

Fuzzy image

Adjust focus with focus adjustment knob

Focusing is not possible

Wait for temperatures inside tube to balance 
out (about 30 minutes)

Bad image

Never observe through a pane of glass.

Object of observation is visible in finder, 
but not in telescope

Align finder (see chapter 7)

Sluggish or stiff steering of the shafts

Balance telescope

Image is “askew,” even with zenith mirror

The eyepiece holder in the zenith mirror 
must be aligned vertically

Troubleshooting:

Summary of Contents for 70/700 NG

Page 1: ...Telescope 70 700 NG Art No 88 45000 Bedienungsanleitung Operating Instructions Mode d emploi Handleiding Istruzioni per l uso Instrucciones de uso Manual de utiliza o DE GB FR NL IT ES PT...

Page 2: ...evice together with your child or children and never allow any child to use any of our optical products unsupervised We hope all users and their parents will enjoy our products Your Bresser team Dear...

Page 3: ...repair if nee ded Do not subject the device to temperatures ex ceeding 60 C TIPS on cleaning Clean the lens objective and eye piece only with the cloth supplied or some other soft lint free cloth e g...

Page 4: ...screws only as much as you can by hand do not over tighten the screws 3 Tripod Take the three legged tripod and set it vertically on the floor with the feet pointing downwards Now take two of the tri...

Page 5: ...pod leg brace downwards a little 5 Tube In order to mount the telescope tube 1 Fig 1 loosen the locking screw on the tube clamp 8 Fig 6 and open up the clamp Set the tube in the middle of the holder...

Page 6: ...e re produced image will be upright and its sides will not be reversed as above Now turn one of the two clamp screws right left of the fin derscope while looking continuously through the finder Contin...

Page 7: ...ertically 9 Flexible shafts In order to facilitate the exact fine adjustment of the declination and right ascension shafts the flexible shafts have been placed on the holders of both these shafts in t...

Page 8: ...ens above com There under An onymous user Select you can choose your country the relevant information will then come up 5 Final orientation Turn the declination shaft 8 as well as the telescope holder...

Page 9: ...ing with the tube in the proposed direction and retighten the clamps The fine adjustment is then performed with the flexible shafts 14 15 Figures 1 7 Finder Your telescope is now roughly aligned and s...

Page 10: ...e 1 Then set the inverting lens 20 Fi gure 2 straight into the eyepiece holder and retighten the clamping screws with your hand Then place the eyepiece e g f 20 mm into the opening of the inverting le...

Page 11: ...with just the zenith mirror and an eyepiece For terrestrial observations and for viewing nature you may use the inverting lens with an eyepiece Problem Solution No image Remove lens cap from lens ope...

Page 12: ...2 in the Orion constellation Figure 20 Right ascension 05 32 9 Hours Minutes Declination 05 25 Degrees Minutes Distance 1 500 light years With a distance of about 1500 light years the Orion Nebula Mes...

Page 13: ...ula ever discovered On July 12 1764 Charles Messier discovered this new and fascinating class of objects We see this object almost directly from its equato rial plane If you could see the Dumbbell Ne...

Page 14: ...epiece Magnification You see In a telescope the magnification de pends on both the focal width of the telescope tube and the focal width of the eyepiece From this formula we see that if you use an eye...

Page 15: ...GB...

Page 16: ...rs and technical changes reserved Sous r serve d erreurs et de modifications techniques Vergissingen en technische veranderingen voorbehouden Con riserva di errori e modifiche tecniche Queda reservada...

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