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www.jacobsdigital.co.nz

9 Mokoia Road

Birkenhead, Auckland 0626

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SkyWatcher 16" f/4.4 Collapsible Dobsonian Telescope

SKU: SWDOB400C

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SkyWatcher 16" f/4.4 Collapsible Dobsonian Telescope-Telescope-Jacobs Photo and Digital
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SkyWatcher 16" f/4.4 Collapsible Dobsonian Telescope

SKU: SWDOB400C

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About this product

The 16" Collapsible Dobsonian Telescope from Sky-Watcher provides you with an economical viewing platform that is vastly easier to transport than traditional Dobsonians. The large 16" SiO4 coated aluminum conical parabolic primary mirror gathers an effective amount of light, while the 1800mm focal length allows for high functional magnifications. Rocker-style forks feature Teflon bearings and an altitude tension clutch. The aluminum azimuth plate on the base has needle bearings for smooth rotation with minimal vibration. This large-apeture telescope is ideal for bright and clear deep space viewing of nebulae, galaxies, star clusters and more.

The two included 4-element Super Plossl eyepieces are multicoated with a 52° field of view. The 25mm eyepiece yields a comfortable 72x magnification. Using the 10mm eyepiece pushes the magnification to a very capable 180x. A 2" dual-speed Crayford-style focuser enables precise focusing that is hard to match with conventional rack-and-pinion focusers.

One of the defining elements of Dobsonian telescopes is their size. While the large size produces bright high-quality images, transporting them is often difficult. The optical tube assembly (OTA) and the base of this telescope are both collapsible to make it more manageable. The optical tube assembly is designed with three support struts. To collapse the OTA, release the locks and slide the front of the assembly down the struts to rest against the back section. The forks on the base unscrew and come off. With no tools required, this collapsible system offers convenience not normally found in a Dobsonian.

Optical Performance
  • Aperture: 16"
  • Focal length: 1800mm, f/4.4
  • Dobsonian Newtonian reflector
  • Conical parabolic aluminum mirror
  • Silicon Tetraoxide (SiO4) reflective coatings
    Use and Handling
    • 2" Crayford focuser
    • 1.25" eyepiece adapter
    • 8x50 right angle erect-image finderscope
    • Aluminum azimuth plate with needle bearings
    • Rocker-mount with Teflon bearings and altitude tension clutch
      Super Plössl Eyepieces
      • 1.25" barrel diameter
      • 4-element multicoated optics
      • 52° field of view
      • Fold-down rubber eyecups
      • Compatible with standard 1.25" eyepiece filters
      • 25mm eyepiece: 72x magnification, 16.9mm eye relief
      • 10mm eyepiece: 180x magnification, 6.5mm eye relief
      Construction
      • Anodized aluminum optical tube assembly (OTA)
      • Base is made of California Air Resources Board (CARB) Phase 2 compliant composite pressed board
      • Collapsible OTA and base for easier transportation
      • Maximum eyepiece height: 68"

      Accessories in the Box:

      • Finderscope 9X50 straight version
      • Eyepiece 1.25″ Super Plossl 25mm (72x) – apparent filed of view 52°
      • Eyepiece 1.25″ Super Plossl 10mm (180x) – apparent filed of view 52°
      • Eyepiece adapter from 2″ to 1.25″ with M42 thread
      • 2″ tube extension
      • User Manual
      Optical Design Dobsonian
      Aperture 16.0" / 40.6 cm
      Focal Length 1800 mm
      Focal Ratio f/4.4
      Eyepiece Barrel Diameter 2"
      Diagonal None
      Finderscope 9 x 50 right angle erect-image
      Tripod None
      Mount Type Dobsonian Alt-Azimuth
      Power Source None
      Optical Tube Dimensions Diameter: 16.0" / 40.6 cm
      Length collapsed: 42.75" / 108.6 cm
      Length extended: 66.5" / 168.9 cm
      Base Dimensions 33.0 x 33.5" / 84.0 x 85.0 cm
      Weight Base: 88.0 lb / 40.0 kg)
      Optical Tube Assembly: 72.0 lb / 32.7 kg
      Assembled Weight: 160.0 lb / 72.5 kg

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