Brands - JMI



Sky-Watcher Collapsible Dobsonian 10"


SKU: S11720
Manufacturer: Sky-Watcher
Availability: IN STOCK
UPC: 050234117203
Telescope Type: Dobsonian
Aperture (in.): 10 inches
Aperture (mm): 254 mm
Focal Ratio: f/4.7
Focal Length: 1200 mm
Limiting Visual Magnitude: 14.6
Eyepiece 1: 25 mm
Magnification with Eyepiece 1: 48x
Eyepiece 2: 10 mm
Magnification with Eyepiece 2: 120x
Accepts 2-inch Eyepieces: Yes
Focuser Type: Crayford
Focuser Size: 2-inch
Finder: 8 x 50 optical right angle


The Sky-Watcher 10" Collapsible Dobsonian combines larger aperture with a new level of portability. 

Quick Overview

  • 1200 mm focal length (f/5)
  • 2" Crayford-style focuser with 1.25" adapter
  • 4-element Plössl 25 mm and 10 mm 1.25" eyepieces
  • 8x50 right angle erect-image finderscope
  • Solid rocker-mount with Teflon bearings and tension clutch for altitude
  • Teflon bearing for azimuth
  • Eyepiece height at zenith: 48"

The Sky-Watcher Dobsonian utilizes quality components throughout. Pride of workmanship manifests itself in high quality standards of optical and mechanical fabrication. The polishing process for primary and diagonal mirror yields smooth mirror surfaces ensuring good contrast, and properly corrected optics show minimum alterations to the optical wave-front.

On each primary mirror, and elliptical diagonal mirror aluminum is vacuum deposited to the front glass surface and then over coated with hard quartz (SiO4). Additional layers of Titanium Dioxide (TiO2) and (SiO4) are then applied. Dust covers help keep your Dobsonian clean when not in use.

An 8x50mm right angle optical viewfinder provides both magnification and light gathering to help narrow your search for those elusive fuzzies when star-hopping. The standard-equipment backlash-free 2" Crayford focuser insures ultra-smooth focusing adjustments. Multi-coated, 4-element Plössl eyepieces (25mm and 10mm) provide a spacious 52 degree Apparent Field of View.

The mechanical and structural components of the OTA exhibit rigid construction and outstanding stability. The mount construction is sturdy and rigid. Mount design, while simple, facilitates smooth motions about both axes. Quality accessories enhance the observer's viewing experience.

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