This telescope is inspected by us before delivery and in any case pre-adjusted. The eyepiece output is stopped.

Please contact for advice on this telescope.


Currently, this Dobson is not shipped and only handed over by pickup personally.

Alternatively, we recommend SkyWatcher SkyLiner-300PX Pyrex Dobson.

How we adjust: About us




 

GSD980 GSO Dobson 980 - 12 "- 300 / 1500mm Telescope - Deluxe version

GS980 - 12 "f / 5 Dobson from GSO - opening 300mm - focal length 1500mm
The largest full tube - Dobson from GSO with much "Deep Sky performance" and 94% forced mirroring.
Please do not hesitate to contact us for further information. Your wishes are important to us!


GSD980
The rocker box is black and not white.

Experience high-visibility with GSO quality optics. The large 12 "Dobson impresses in every respect, not only the powerful look, but also the dimensions of the device, but can not be more on the therefore you have to know that it can no longer be transported on the back seat of the car, you need A combination, the tube is 145cm long!

The GS 980 offers impressive performance. You can see with the opening of 300mm already every object of the NGC catalog. Take the constellation of the Virgin, here you can spend 980 nights with the GS, without even seeing one object twice. "A life is not enough to look at everything that can show you such a great Newton."

The special features of the GS980:

- Bending limiter working main mirror made of BK7 with fan
- Computer-optimized 9-point bearing main mirror cell
- Solid metal tube, which keeps the adjustment very good
- 2 "Crayford excerpt (ball bearing) with 1:10" the best extract of this manufacturer "!!!
- Powerful 8x50 viewfinder with multi-lens lens - the viewfinder shows the brightest objects
- 2 "Overview eyepiece ERFLE with 30mm focal length - so you have a large field of view for an overview
- Sharp 9mm Plössl eyepiece for details on the moon and planets
- Cleanly machined mounting with very sensitive adjustment - horizontal and vertical
- New and innovative friction bearing for height - better and more effective than simple height wheels
- 94% forced mirroring for a bright image

The diffraction-limited main mirror of the GS980

The core of a Newton telescope is always the main mirror. GSO has been producing excellent optics for years. The company is renowned for its optical quality, which we believe is clearly above the average of other suppliers in this price class. We therefore guarantee for this GSO Newton a diffraction-limited image.

The 2 inch Crayford extract from GSO The 2 "Crayford extract from GSO:

... it is the best move of this manufacturer. The eyepiece extension is considerably superior to simple excerpts with tooth / drive.

- no shaking during shifting (shifting)
- significantly more robust - up to a weight of 3 kg
- 1:10 Microdocumentation for even more precise focus
- Ring clamp for 2 "and 1.25" accessories - threaded
Secure hold and precise positioning on the axle
The height of the GSO Dobson:

A new, effective solution was found for the high-altitude storage.

A stable steel axle carries the entire tube weight. The adjustment takes place via two CNC machined surfaces - precisely and without lateral slipping.

In addition, you can adjust the resistance via a large knurled screw on each side - from ultra-light to high resistance. This prevents you from surrendering the unit, for example, during high wind loads.

Adjustment of the balance:

You can precisely adjust the balance of the dobson. For example, Instead of the 8x50 viewfinder you can use a light-colored viewfinder or if you want to use a heavy Bino attachment on the eyepiece - no problem! Simply adjust the position of the elevation wheel to the Rocker box - accurate scaling ensures that you have the same position on each side.
The roller bearing for horizontal adjustment:

A simple Teflon bearing, as used by the manufacturer earlier, causes too much adjustment. When the telescope is directed towards the zenith, the lever is so unfavorable that a fine adjustment is almost impossible.

The modern industrial roller bearing allows a very sensitive adjustment. Above and below the bearing are metal plates which prevent the rollers from pressing into the soft laminate. This means that the adjustment remains even and supple even after many years.
Computer-optimized main mirror cell

The computer-optimized 9-point main mirror cell, which is made entirely of metal (with the exception of the plastic mirror bearing points), is also standard.


Technical specifications:

- Opening: 300mm / focal length: 1500mm / Opening ratio: f / 5
- Main mirror: mirror support BK7 (limited to bending)
- Resolving capacity: 0.38 "
- Limit size: 15m4
- Maximum field of view: 1.8 °
- Shading through the landing mirror: 25%
- Tube diameter: 365mm
- Tube length: 1450mm
- Weight of the tube: 19,5kg
- Dimensions of the Rocker Box: height 64cm / diameter 63.5cm
- Weight of the Rocker Box: 13,5kg

Delivery:

roller bearing

Smooth azimuthal bearing

Erfle
2 "wide angle ERFLE
Good field sharpness / overview

Plossl
Super Plössl 9mm
Multi Rewarded

abstract
2 "Crayford eyepiece extractor
Micro Subsystem 1.25 "Adapter

viewfinder
Powerful 8x50
Viewfinder for quick search


- GSO Dobson with diffraction-limited optics and rocker box
- Fan for main mirror
- 8x50 viewfinder with multivergmented lens and quick coupling
- 2 "Crayford extension with 1:10 micro support and reduction for 1,25" accessories
- 30mm wide angle For an optimal overview - 70 ° apparent facial field
- 9mm Super Plössl - multi-compensated
- Support plate for eyepieces and filters
- diffraction-limited quality optics
- highly reflective coating
- Central marking as adjustment aid

Benefit from our experience as a telescope specialist:
 
For more than 30 years we have been passionate about astronomy
Every day we check, optimize & adjust telescopes, mounts & accessories, before handing over to the customer
In this way we know the advantages and disadvantages of the individual products
We sell & recommend only products we use ourselves of which we are convinced
For a comprehensive, brand-independent consultation we take a lot of time for you
As the first astronomy specialist, we offer our customers real-time video consulting,
For to see is to understand
Even after the purchase we are there for you & are still at the side for setup and operation
In case of questions or new entry, we offer instruction & In special cases also on-site service in the Munich area