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Sky-Watcher USA - 16" Sky-Watcher Collapsible Dobsonian


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Availability: Available - Ships in 2-4 Days


Available - Ships in 2-4 Days

Manufactured by: Sky-Watcher USA


SKY-WATCHER - 16" (406MM) Collapsible Dobsonian Reflector  - S11780

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.

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.The Sky-Watcher 16" Dobsonian offers an amazing amount of light-gathering for a very reasonable price! At that aperture, other telescope designs would cost thousands of dollars more and would be far from portable, but this collapsible Dob offers amazing views in a semi-portable package.

  • The truss tubes collapse into the mount instead of requiring that they be removed entirely, keeping them safe from dents or dings. This design feature also means you won't accidentally leave your truss poles behind when you head out to a dark sky site.
  • The primary and secondary mirror is aluminized in a vacuum chamber and then over-coated with hard quartz (SiO4) and additional layers of Titanium Dioxide (TiO2) and (SiO4). The coatings offer extra protection to the surface while optimizing the clarity and sharpness of observed objects.
  • The rocker box mount comes with smooth Teflon bearings and a tension clutch for altitude.
  • Accessories include a 9x50 straight-through finderscope, two eyepieces, and a 2" Crayford-style focuser with an 1.25" adapter.


Quick Overview:

  • 16" (406 mm) Dobsonian-style Newtonian
  • 1800 mm focal length (f/4.4)
  • 2" Crayford-style focuser with 1.25" adapter
  • 4-element Plössl 25 mm and 10 mm 1.25" eyepieces
  • 9 x 50 straight-through finderscope
  • Solid rocker-mount with Teflon bearings and tension clutch for altitude
  • Aluminum plate with needle bearings for azimuth
  • Eyepiece height at zenith: 68"









Product Series

Reconciling the desire for a large aperture telescope with the reality of a limited budget is an age-old problem. But it's a problem with an easy answer: Sky-Watcher collapsible Dobsonians.

Sky-Watcher USA Dobsonian telescopes deliver high-quality optics, huge aperture, solid construction and superb value. And only Sky-Watcher Dobsonians provide the extra portability and convenience of collapsible optical tubes. If you're looking for a big light bucket with a little price tag, look no further! Sky-Watcher USA has what you need.


Additional Information

Name Sky-Watcher USA - 16" Sky-Watcher Collapsible Dobsonian
Manufacturer Sky-Watcher USA
Model S11780
Manufacturer Part No S11780
Telescope Aperture 14.1" - 16"
Aperture 406mm
Eyepiece 1 10mm Super Plössl
Eyepiece 2 25mm Super Plössl
Eyepiece 1 Magnification 180x
Eyepiece 2 Magnification 72x
Focal Length 1800mm
Focal Ratio ƒ/4.4
Focuser 2" Crayford style Dual Speed
Mount Dobsonian