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Sky-Watcher USA

10" Classical Dobsonian (S11620)

  • 54500
  • Save $ 5000

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Quick Overview

  • 10” (254 mm) Dobsonian-style Newtonian
  • 1200 mm focal length (f/4.7)
  • 2” single-speed Crayford-style focuser with 1.25” adapter
  • 4-element Plössl 25mm and 10 mm 1.25” eyepieces
  • 9x50 finderscope
  • Solid rocker-mount with Teflon bearings and tension clutch for altitude
  • Teflon bearing for azimuth

2-inch Focusers

With their 1.25-inch adapters, these focusers accommodate all popular eyepieces

Easy two-piece assembly 

Sky-Watcher Classical Dobsonians quickly disassemble into tube and base for quick transport or storage

Award-winning optics 

Sky-Watcher’s 94% reflectivity mirrors ensure you get bright and detailed views.

A simple, elegant form of an alt-azimuth mount made to carry a Newtonian reflector was popularized by John Dobson in the late 1970’s. The Dobsonian mounted telescope is popular among amateur astronomers and telescope makers because of its simplicity and ease of use.

The Sky-Watcher Dobsonian has a “paraboloidal” primary mirror to eliminate spherical aberration and a four-arm, secondary mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss. In addition, this model includes a 2-inch focuser with a 1.25-inch adapter, allowing the use of either eyepiece size. This model also includes the new feature-tension control handle.



10 inch 

Optical design 

Newtonian reflector 

Mirror diameter 

254 mm (10 in) 

Mirror type 

Standard parabolic 

Focal length 

1200 mm 




8x50 straight-through 


25 mm (60x), 10 mm (150x) 


2 inch single-speed Crayford-style with I.25 inch adapter 

Base type 

Standard Dobsonian 

Tube weight (pounds) 


Base weight (pounds) 


Assembled weight (pounds) 


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