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GSO 16″ Truss Dobsonian

157458 (Excluding Taxes)

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 tray



Optical Tube:
  • 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
  • 8×50 fully multi-coated achromatic finder
  • Dobsonian base (assembly required)
  • Cooling Fan
Solar Warning:

Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.

Support Documents


Recommended Accessories
  • 1.25″ 2X Achromatic Barlow – To get more magnification while observing your favorite planet
  • Universal Smartphone Adapter – To capture pictures of Moon and planets right in your smartphone immediately as you observe it.
  • T-Ring (Canon) – To capture photos with your Canon EOS DSLR using Telescope tube as high focal length lens for camera.
  • T-Ring (Nikon) – To capture photos with your NIKON DSLR using Telescope tube as high focal length lens for camera.
  • T-Ring (Sony) – To capture photos with your Sony DSLR using Telescope tube as high focal length lens for camera.
  • 1.25″ T-Mount/Adapter – To attached any DSLR directly in the eyepiece barrel when using in combination with DSLR TRing.
  • Customized Telescope Padded bag: Designed to keep your Telescope safe from sudden damages to optics and body, safe of dust and dirt, easy carrying solution.


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