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

Set-up is as easy as you can imagine very simple assembly with the rocker box and put it on the ground, insert the telescope tube and put the springs in position and you're ready to go to navigates through the night sky by simply moving the tube up or down, or side to side, by hand.

All GSO dobsonian use optical quality BK7 glass, cooling fans built into the rear cell to decrease cooling times, also all dobs use a roller bearing on the azimuth surface providing dozens of support points for smooth swivel motion. The deluxe model comes with 2" Micro 10:1 Crayford style focuser and 1.25" adapter.


New design GSO truss tube 16" aperture, 1800mm focal length Dobsonian delivers amazing views of deep space and represents outstanding value! 

  • Huge 16" f/4.5 primary mirror boasts superior 1/12 wave surface error
  • New, stronger roller bearing design with thicker steel panels
  • Unique new roller side bearings with adjustable tension/braking by way of extra large, knurled side knobs!
  • Tube balance adjustment (fore and aft) of up to 25mm is possible
  • Strong 18-point primary mirror flotation cell - with a 4.7" cooling fan!
  • Easy assembly and disassembly of its heavy duty "TPL" truss tubes compared to complex 6-truss tube designs
  • Crayford style 2" 10:1 precision microfocuser with 1.25" adaptor
  • Oversized knurled collimation knobs allow easy mirror adjustment
  • Outstanding quality - overall! Black colour, not white!
  • No white reflective surfaces within the optical path in this design!
  • Features an achromatic 8 x 50 right-angle correct image finderscope
  • Limiting magnitude of 15.5 and resolving power of 0.29 arc seconds
  • You will see into deep space like you've never seen before...
  • Includes 2" 35mm eyepiece extension tube, 2" eyepiece accessory 


Telescope Specification:
  • 16" Parabolic primary mirror
  • Focal length: 1800mm, F/4.5 
  • 2 " Precision Micro 10:1 Crayford style focuser 
  • 2 " 35mm Eyepieces Extension tube 
  • 18 points mirror cell w/ 4.7" cooling fan. 
  • Roller bearing wood base 
  • All CNC made adjustment side bearing
Standard Accessories: 
  • 8x 50mm fully multi-coated achromatic Finder 
  • Premium Plossl 9mm (1.25") 
  • Premium SuperView 30mm (2")   
  • Moon filter included 
  • 2 " Eyepieces tray
What's in the box? 
  • 16" (406mm) f/4.5 Newtonian optical tube assembly
  • 9mm Plossl 1.25" eyepiece
  • 30mm Premium SuperView 2" eyepiece
  • 2" 10:1 Crayford focuser with adaptor for 1.25" eyepieces 
  • 8x50 fully multi-coated achromatic finder 
  • Dobsonian base (assembly required)
  • Cooling Fan


Country of Manufacturing TAIWAN

Optical Design

Newtonian reflecing Telescope

Optical design Newtonian
Primary mirror 16" (406mm) BK7 glass with surface quality better than 1/12 wave RMS
Focal length 1800 mm  
Focal ratio f/4.5 
Finder scope  8x50mm fully coated achromatic finder  
Focuser  Crayford 2" focuser 
Eyepieces  9mm 1.25" PLOSSL Eyepiece
30mm Premium SuperView 2" Eyepiece
Base Elevation brake tension system. Azimuth roller bearings.
Total height  1.9m tube plus base 
Weight of tube  33kg 
Weight of tube plus base 58kg 

GSO PRO-Dobsonian Telescopes - 16 inch

Taxes Included