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GSO 16″ Truss Dobsonian

167797 (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!
  • 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

Available on backorder

Description

Specifications

  • Model: 16″ f/4.5 Dobsonian
  • Optical design: Newtonian Reflector
  • Aperture: 406mm (16″)
  • Focal ratio: f/4.5
  • Focal length: 1829mm
  • Primary mirror: BK7 Parabolic primary mirror, minimum 93% reflectivity
  • Mirror coatings: Aluminum and silicone dioxide (SiO2)
  • Secondary mirror: Minimum 93% reflectivity
  • Secondary mirror holder: 4-vane all metal spider
  • Secondary Mirror Obstruction: 25%
  • Focuser: 2″ dual-speed Crayford
  • Mount: Carbon Fibre Truss Dobsonian mount with tension clutch control
  • Finderscope Right Angled, 8×50
  • Eyepiece 1: 9mm 1.25″ 52º Super-Plossl with 6mm eye-relief
  • Eyepiece 2: 30mm 2″ 68º Superview with 22mm eye-relief
  • Accessories: 35mm 2″ extension tube, 2″ to 1.25″ eyepiece adapter & 12v battery holder for the cooling fan
  • Shipped size OTA Primary Mirror Box: 64cm x 64cm x 78cm / 25.2″ x 25.2″ x 30.7″
  • Shipped size OTA Secondary Mirror Cage: 68cm x 61cm x 31cm / 26.8″ x 24″ x 12.2″
  • Shipped size Base: 93cm x 93cm x 20cm / 36.6″ x 36.6″ x 7.9″
  • Shipped weight OTA Primary Mirror Box: 35kg
  • Shipped weight OTA Secondary Mirror Cage: 10kg
  • Shipped weight Base: 22kg
Carbon Fibre Truss Tubes
  • Six carbon fibre truss poles arranged in a triangular formation form the main telescope tube joining the bottom primary mirror box to the top secondary cage.
  • A truss constructions allows the telescope to fit in most normal cars and reduces the weight significantly vs solid tubes.
  • The ‘open’ arrangement allows for quicker temperature equilibrium of the mirrors for the best performance.
  • The CNC machined locking points and truss arrangement ensure a strong, rigid constructions that will hold collimation effectively.
Standard Accessories:
  • 8x 50mm fully multi-coated achromatic Finder
  • Premium Plossl 9mm (1.25″)
  • Premium SuperView 30mm (2″)
  • 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
Other Accessories
  • 35mm 2″ focus extension tube with brass compression ring for eyepieces and accessories that require additional back focus distance
  • 9mm 1.25″ 52º Plössl eyepiece with 6mm eye-relief
  • 30mm 2″ 68º Superview eyepiece with 22mm eye-relief
  • 8x AA battery holder with 2.1mm DC plug to fit the primary mirror 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

GSO_16 Truss (CFT)_dobsonian_manual

Recommended Accessories
  • GSO 2″ 2X ED Barlow – To get more magnification while observing your favorite planet with high quality ED barlow.
  • 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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