D=150 / F=1200mm Dobsonian F/8 . . . . Rs. 24600
User level : Enthusiast
Dobsonian Telescopes from GSO are often purchased by beginners due to their simplicity and ease of use. Dobsonian telescopes are designed for visual observing. GSO Dobsonians have a better coating and high quality mirrors for maximum success and fun under the starry sky. Its cost/performance ratio is truly unbeatable.
Excellent Visual Performance 
For the 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 the main mirror and secondary mirror produces a brighter image. Save up to 10% light against other telescopes with the 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. The 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!
Optical Design
Newtonian reflecing Telescope
Primary Mirror 6 inch Parabolic 1/12 wave.
Precisely figured parabolic mirror - diffraction limited / BK7
94% enhanced coating
Focal Length 1200mm
Focal Ratio F/ 8
Highest Practical Power 360
Faintest Steller Magnitude 13.7
Resolving Power
0.74 Arc - Seconds.
Focuser diameter 1.25" Precission Crayford style focuser".
Eyepiece Standard 1.25" Premium Plossl 25mm (1.25") 52° field.
Eyepiece Standard 1.25"
Premium Plossl 9mm (1.25") 52° field.
Magnification with eyepiece 48x & 133.3x
Magnification with eyepiece 40x
6x30mm Fully multi-coated achromatic finder
Mount type
DOBSONIAN- wooden base.
Mirror Cell 3 points mirror cell
Accessories Tray Eyepieces tray
Total Height 52 inch
Tube length 45.25 inch
Stand height 27 inch
Base diameter 20 inch
Shipping Weight

Tube : Net weight - 9 Kg / Gross weight: 11 Kg
Stand: Net weight - 12Kg / Gross weight: 14 Kg

Shipping Carton Dimension Tube : 32 x 40 x 128 cm3
Stand: 14 x 64 x 64 cm3
Instructions for use in ENGLISH
Download Instruction of GENERAL 150/1200 Dobsonian Reflector Telescope in .PDF format
The following items are FREE with the telescope listed above.
Magnitude 5 Star Atlas
Directional Compass  FREE
Starscope Anti-Vibration Pads
Collimination Tool (for Newtonian)
Micro Fiber (Anti-Static) Cleaning cloth
Optics Cleaning Fluid
COLOUR POSTER 17.5"  x 22.5 "  one
110 Messier Object Locator     A4 size front back colour print
109 Deep Sky CALDWELL Catalogue A4 size front back colour print
Star Dial - Identifying Stars & Constellations
Various Astronomical Post-Card (SET-3)
Desiccant Cap - Refillable desiccant cap to protect fine optics
Astronomical Telescope - user guide
The Moon Map Poster B/W chart unfold to 22"x26"
Carry BAG
Galaxy Eyepiece - view hundreds of Galaxy Clusters & Nebulae.

6x30 finderScope

powerful 6x30 finderscope, multicoated objective lens. This little telescope will show many objects in direct vision for easy location.

  • Finderscope bracket: The 6x30mm finderscope mounts in a quick release bracket that slips into a pre-installed metal mounting shoe nearer the focuser. The bracket is held in place in the mounting shoe by a single large hand-tighten knob that maintains the finder’s collimation, even if the finder is removed between observing sessions. The bracket has two hand-adjust collimation screws that work in conjunction with a third spring-loaded post in the bracket. This makes collimation faster than the traditional three- or six-screw collimation methods used with conventional finder brackets.

Optical Quality
The heart of any telescope is its optics. GSO produces parabolic primary mirrors of very high quality. It is our firm opinion that GSO offers better mirrors in this price range. We guarantee a diffraction-limited performance, which essentially means that the performance is limited by observing conditions and the laws of physics.

  • Primary mirror: 6” (150mm) diameter, 1200mm focal length, f/8 focal ratio with surface accuracy of 1/12 wave. The mirror is made of B270 “water white” optical crown glass that is free of internal stress and striae. B270 glass is equivalent to BK7 in performance and optical quality. The thermal stability of B270 glass is generally better than the soda lime float glass used for the mirrors of most reflectors in this reasonable price range. The mirror is ground and polished under computer control for guaranteed diffraction limited performance, coated with 94% reflectivity aluminum, and overcoated with a protective layer of silicon dioxide (quartz) for long life.
  • Primary mirror cell: Fully adjustable 3-point flotation system metal cell holds the primary mirror. The open frame of the cell allows the mirror to cool down to ambient temperatures quickly, so you can start observing sooner. Large hand-tighten color-coded push-pull collimation and collimation lock knobs make it easy to collimate the primary mirror with no tools required.
  • Diagonal mirror: 32mm m.a. B270 “water white” optical crown glass, coated with 91% reflectivity aluminum and overcoated with a protective layer of silicon dioxide (quartz) for long life.
  • Diagonal mirror support: Fully adjustable diagonal holder mounted on a low-diffraction four-vane thin spring steel spider.

Two eyepieces: 

Fully multicoated Premium plossl eyepiece1.25"
Plossl 25mm 1.25" OD (48x)52° field
Plossl 9mm 1.25" OD(133x) 52° field

GSO Crayford Focuser:

The focuser is the most "visible" part of any telescope with the exception of the optics themselves. You touch the focuser all the time, the focuser is responsible for holding your eyepieces or camera in position and moving them precisely into focus in the first place. This way ultra-precise focus motion is possible for both visual and particularly photographical applications.

The features: 

The finest focuser GSO manufacturer has to offer. It is far superior to most classic rack-and-pinion focusers:

No image shift when focusing

Large load capacity: Up to approx.2.5kgs with a firm friction setting

Include 35mm extension tube 1.25" OD

1. Smooth Focusing Action
The Crayford style focusing control makes achieving precise focus for visual observations and astrophotography a breeze and you will experience very smooth and precisely controlled focuser motion with zero backlash and zero image shift. 

2. High-Quality Construction and Features
CNC machined from aluminum and anodized black, this focuser comes with a base plate adapter to attach to reflector telescopes. The inner drawtube glides on 4 precision bearings and a roller shaft and provides. The inner barrel is baffled and painted a flat black to minimize reflections for maximum contrast.

3. Tension Adjustment and Focus-Lock
The focuser has two large thumbscrews on the underside. The thumbscrew on the telescope side can be used to lock the focuser, allowing the use of heavy accessories or cameras without fear or slippage or losing focus. The other thumbscrew on the eyepiece end can be used to adjust the tension of the focuser to achieve a focusing "feel" that you like. At the easiest (lightest) setting, the focuser moves extremely smoothly. At tighter settings, you can still use heavier accessories without sacrificing much of the smooth focuser action. GSO's rated load capacity for their Crayford focusers is about 2.5 kgs.


Eyepiece tray: A standard equipment eyepiece tray attaches to the side of the scope’s altazimuth base. It has cutouts to hold one 2” eyepiece and three 1.25” eyepieces.

Upgrade your Dobsonian
A Dobsonian telescope from GSO is a perfect starter telescope. You will get a high-end optic for an incredibly low price. Later you can upgrade the telescope with eyepieces, filters or with cradle rings to mount it upon an equatorial mount. Then you also can start with astrophotography through your Newtonian telescope.
Suggested Accessories with this Telescope
  • Baader Solar Filter (off-axis) Germany . . . . Rs. 1200
  • R-G Solar filter (USA) provide more pleasing and natural Yellow-Orange image of the Sun . . . . Rs 1470

    Azimuth Roller Bearing: . . . . Rs 2100

    EYEPIECES (Super Premium Plossl for GSO)

  • 40mm Plossl Eyepiece 1.25" . . . . Rs. 2820
  • 32 mm Plossl Eyepiece 1.25" . . . . Rs 2640
  • 20 mm Plossl Eyepiece 1.25" . . . . Rs. 2460
  • 15 mm Plossl Eyepiece 1.25" . . . . Rs. 2280
  • 12 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • 6 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • 4 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • GSO SuperView 15mm 1.25" Wide Angle Eyepiece . . . . Rs. 3000
  • GSO SuperView 20mm 1.15" Wide Angle Eyepiece . . . . Rs. 3000


  • GSO 2X Achromatic BARLOW LENS- fully multicoated 1.25" . . . . Rs. 1470
  • ED 3X Barlow Lens GSO 1.25" . . . . Rs. 2640
  • 3 Elememt 2.5x Barlow GSO 1.25"  . . . . Rs. 2370
  • 3 Elememt 5x Barlow GSO . . . . Rs. 2820
  • T-RING Nikon . . . . Rs. 840
  • T-RING Canon . . . . Rs 840
  • T Adapter 1.25" . . . . Rs. 750
  • Universal A-focal / Digital camera adapter . . . . Rs 930
  • Universal A-focal / Par-focal cam-cord adapter . . . . Rs 1200
  • Super ACHROMATIC (MultiCoated /High Colour corrected) 2X BARLOW 1.25" OD, 2 ELEMENT LENS with T-thread for direct camera attachment /with Brass compression ring / GSO. . . . Rs. 3,000
  • 2 inch T-2 Camera Adapter . . . . Rs 1650
  • Eyepiece Projection Camera Adapter . . . . Rs. 2100
  • Universal Cell Phone Adapter . . . . Rs. 1830
  • GSO 1.25" 32mm Camera Projection Lens (CPL) eyepiece ... Rs. 3,900
  • GSO 1.25" 40mm Camera Projection Lens (CPL) eyepiece ... Rs.4,080

  • Carry Bag Padded for 6 inch f8 OTA . . . . Rs. 1830
  • GSO....0.5X Focal Reducer 1.25" with 25mm extension tube ....Rs 1560
  • GSO.....0.5x Focal Reducer 2 inch ....Rs 2100
  • Planet View filter each . . . . Rs 750
Solar Filter Free with this Telescope
Solar Filter Free for FinderScope
FREE Carry Bag
FREE Wide Angle
Galaxy Eyepiece















































































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