Product number: GSD200C

EUR 479,00RRP EUR 589,00you save 18.7% (EUR 110,00)


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rating: 5.0 of 5
  • Details..
  • Technical data..
  • In the box..
Dobsonian Telescopes from GSO offers a lot of telescope for the money. They are often purchased for beginner due to their simplicity and ease of use. Dobsonian telescopes are designed for visual observing. GSO Dobsonians have better coating and high quality mirrors for maximum sucess and fun under the skies. Its cost/performance ratio is truly unbeatable.

Excellent Visual Performance: For best possible image quality you need high quality optics as well as optimized mechanics. The GSO Dobsonian has both. The thin spider vanes improve contrast and image sharpness compared with a simpler spider with thick vanes. The 94% enhanced coating on main mirror and secondary mirror produces a brighter image. Save up to 10% light against other telescopes with same aperture.

Grab-And-Go Setup: The simple and intuitive way to use this telescope makes it much easier for beginners to spend their first joyful hours under the starry sky. Set-up is as easy as you can imagine: just put the rocker box on the ground, insert the telescope tube and put the springs in position and you´re ready to go!

Primary Mirror Cooling Fan: Until a mirror is properly cooled down it will create currents of warm air that will deteriorate the image - no matter which mirror substrate is used. Only after the mirror has cooled down this effect stops. The cooling fan reduces the cooling down time.

Upgrade your Dobsonian: A Dobsonian telescope from GSO is a perfect starter telescope. You will get a high end optic for an incredible low price. Later you can upgrade the telescope with eyepieces, filters or with tube clamps to mount it upon a parallactic mount. Than you also can start with astrophotography through yor Newtonian telescope.


Optical performance: The telescope is equipped with high quality GSO mirrors. The selected main mirror is better, than difraction limited. We always make optical tests on our optical banch to guarantee the high optical level of GSO Newtonians and Dobsonians.


The 2" Crayford Focuser: A central part of the telescope is the good 2" Crayford focuser with many advantages:

Much smoother focus motion compared with simpler focusers.


Secure and scratch-free grip on the eyepieces through use of a brass compression ring (both 1.25" and 2")


No image shift. This means that the object will remain precisely in position while you focus. Simpler focusers tend to be shifted a little bit out of alignment, resulting in a relative movement of the object. This somewhat annoying effect does not occur in the Crayford focuser.


No play when you reverse the focusing direction. The focuser will reverse the direction in which it moves instantaneously when you change the direction in which you turn the focus knobs.


Centering and Tracking Objects with the GSO Classic Dobsonian:


The mount of a Dobsonian telescope is called "Rocker-Box", a fitting name for the uniquely simple and well-working design.

The rocker allows you to point the telescope at any point in the sky and allows for comfortable, intuitive movement. Moving the telescope is very simple, just push the telescope into the right direction ? no need to use clamps or motors, it doesn´t get more simple than this! Since you need to move the Dobsonian manually it is particularly important that the movement be as smooth as possible. The Dobsonian has an azimuth roller bearing for smooth operation.

For the elevation, the telescope is equiped with the Spring Tension System. This prevents the telescope from moving for example when exchanging eyepieces.


Instruction: Teleskop-Service provides a (partially German) manual as PDF, you can download it here: gsdxxxc.pdf
Optic:Parabolic main mirror - BK7 optical glass
Aperture:200 mm - 8"
Focal Length:1200 mm
Focal Ratio:f/6
Secondary Mirror:50 mm diameter
Obstruction:25% linear
Collimating help:Center mark on the main mirror
Focuser:2" Crayford focuser with 1.25" reducer
Tube:Steel tube
Tube weight:13 kg
Tube length:1150 mm
Tube diameter:230 mm
Rockerbox mount weight:10.2 kg
Rockerbox mount dimensions:Height 600 mm / Diameter 500 mm
Movement:Elevation Spring Tension System/ Azimut Roller Bearing System
Weight of complete telescope:23.2 kg
GSO Dobsonian telescope
Rockerbox - azimutal mount
Fan with battery holder
8x50 finder with achromatic objective
25 mm 1.25" Super Plössl eyepiece
2" extension tube, length 35 mm
Manual



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Reviews

Written by Michael Wolter
on 2023-09-12

"Sehr gutes Einsteiger-Teleskop, das neben Planeten-Beobachtung auch für Deep-Sky Objekte gut geeignet ist. Ist zu empfehlen."

Written by Klaus Metzner
on 2023-05-14

"macht guten Eindruck aber zur Zeit regnets nur, keine Beobachtungen möglich."

Written by Stefan Schnelle
on 2022-07-20

Ein vielseitiges Teleskop mit einer super Spiegelqualität.

Written by Anastasia Brodt
on 2021-03-29

"Der Teleskop eignet sich gut für Anfänger. Der Zusammenbau war nicht kompliziert und die Qualität ist gut. "

Written by Christopher Regling
on 2020-08-07

"Tolles Teleskop für den Anfang. Nur die Montageanleitung könnte besser sein, da man sich als Anfänger nicht auskennt. "

Written by Arno Münster
on 2020-06-20

"Gute Verarbeitung, für den moderaten Preis ein tolles Gerät. Bis jetzt Mond, Jupiter und den Ringnebel in der Leier beobachtet. Sinnvoll ist ein zweites Okular mit kurzer Brennweite."

Written by Corinna Lovisi
on 2020-01-10

"Qualität ist einwandfrei und auch die Aussicht in den Himmel(Planeten) sind super. Toll finde ich auch, das man mit dem Handteleskop (kann man abschrauben)auch die Planeten sieht. "

Written by Susanne Maszutt
on 2018-05-16

"Das Teleskop ist ein sehr gutes Produkt von hoher Qualität."

Written by Diederick Vries
on 2017-07-13

"The telescope is as descibed a good beginner´s telescope. Since it is summer, almost full moon and I live in a city, I haven´t yet fully used it, but it collects a good amount of light."

Written by Florian Mittelstädt
on 2017-01-07

"Sehr ordentliches Teleskop, gut verarbeitet und durchaus Einsteiger-tauglich wegen der Dobson-Montierung. "

Written by Rolf Hempel
on 2016-03-30

"Ich verwende das Teleskop nur, um schnell das Seeing überprüfen zu können. Für den Preis war ich überrascht von der sehr guten Verarbeitung und Qualität. Für Anfänger ein tolles Hauptteleskop!"

Written by Andrea Bergamini
on 2016-01-04

"Unser Einsteigerteleskop. Tolles gerät. Wir werden noch das eine odet das andere Okular dazu kaufen. Mavht grossen Spass damit Planeten anzuschauen. Nebulae kommen noch."