The GSO Dobsonian model serves a very clear purpose, to offer a large aperture and an excellent image quality at reasonable cost.

Setting up the telescope is extremely easy. The 8" Professional Dobsonian comes with an advance rocker base which is placed on the ground. The Telescope tube is directly mounted on the rocker base. Put the springs in position and you're ready to go to navigate through the night sky by simply moving the tube up or down, or side to side, by hand.

All GSO Dobsonians use optical quality of high quality BK7 Glass, cooling fans built into the rear cell to decrease cooling times. The Professional Dobs use a roller bearing on the azimuth surface providing dozens of support points for smooth swivel motion.

The deluxe / professional model comes with 2" Micro 10:1 Crayford style focuser along with a 1.25" adapter for smaller 1.25" Eyepieces.

It also comes with a 2" PREMIUM Super View 30mm Eyepiece which will change the way you do Astronomy by giving Ultra Wide Angle views of the NIGHT SKY.

What's In The Box
  • GSO Dobsonian Telescope with an ADVANCE ROCKER BASE
  • Cooling Fan behind the main mirror
  • 8x50 Finder with Achromatic Optics
  • 2" Crayford focuser - 1:10 micro - reduction from 2" to 1.25"
  • 30 mm 2" Wide Angle ERFLE with 70° field for good overfiew
  • 9 mm Premium Plössl - multicoated
  • 35mm 2" extension
  • Eyepiece and Accessory Tray for Eyepieces
  • Collimation Tool


Country of Manufacturing TAIWAN
Optical Design

Newtonian Reflecing Telescope

Primary Mirror 8 inch Parabolid 1/12 wave.
Precisely figured parabolic mirror - diffraction limited / BK7
94% enhanced coating


Focal Length 1200mm
Focal Ratio F/ 6
Highest Practical Power 480
Faintest Steller Magnitude 14.2
Resolving Power

0.57 Arc - Seconds.

Focuser diameter 2" Precission Micro 10:1 Crayford style focuser".
With 1.25” eyepiece adapter.
A Dual-Speed 10:1 ratio focuser is now included for excellent focusing precision. 
Eyepiece Standard 2" Premium Widefield SP 30mm (2")
68° field SuperView eyepiece with a wide 1.7° actual field of view that’s well over three times the diameter of the full Moon.
Eyepiece Standard 1.25"

Premium Plossl 9mm (1.25") 52° field.

Magnification with eyepiece 40x & 133.3x
Finder 8x50mm Fully multi-coated achromatic finder
Mount type

DOBSONIAN- wooden / with Roller Bearing wooden base / Clutch mount with tension knob

Mirror Cell

3 points mirror cell with cooling fan

Accessories Tray 2 inch Eyepieces tray
Mirror stabiliser Cooling fan for "thermal equilibrium"
Battery-operated primary mirror cooling fan
Total Height 52 inch
Tube Length 45.25 inch
Stand Height 27 inch
Base Diameter 20 inch
Shipping Weight Tube : Net weight - 13 Kg / Gross weight: 15 Kg
Stand: Net weight - 12Kg / Gross weight: 14 Kg
Shipping Carton Dimension

Tube : 32 x 40 x 128 cm3
Stand: 14 x 60 x 70 cm3

GSO PRO-Dobsonian Telescopes - 8 inch

Taxes Included