Sky-Watcher 8" Quattro Imaging Newtonian OTA

Sky-Watcher 8" Quattro Imaging Newtonian OTA
Item # SW-S11210
5 Questions(s)

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  • The Sky-Watcher 8" (205 mm) Quattro OTA is a fast f/4 Newtonian that provides a wide field of view.
  • This Quattro Imaging Newtonian optical tube assembly incorporates a superb mirror set for better imaging
  • This Sky-Watcher Newtonian reflector has a focal length of 800 mm
  • The Quattro sports a 2" dual speed 10:1 linear power focuser
  • Accessories include an 8x50 finderscope and two tube rings with a Vixen-style dovetail bar


Sky-Watcher Quattro 8" Imaging Newtonian OTA

The Sky-Watcher Quattro 8" (205 mm) Imaging Newtonian OTA is a great optical tube assembly for either visual astronomy or astro-imaging work. This fast 8" f/4 Newtonian telescope has a superb mirror set, allowing you to see sharp, high contrast images of celestial objects. Additionally, the tube length has been slightly shortened to optimize performance for doing prime-focus photography. A 2" dual speed 10:1 ratio focuser is included for precision focusing adjustments, and an 8x50 finderscope will provide bright views when you're hunting down your favorite deep-sky object.

Sky-Watcher has designed a custom coma corrector for those astro-imagers with larger imaging sensors. The optional Quattro Coma Corrector will improve both visual and photographic performance by correcting for coma around the edges of the field of view, a normal aberration found in optical systems using parabolic mirrors, such as a Newtonian telescope.

Because this Sky-Watcher Quattro 8" (205 mm) Imaging Newtonian OTA incorporates significant improvements over competing fast Newtonians, you will be assured of rewarding views of many celestial objects and also achieve good image results when doing astroimaging.

Sky-Watcher Quattro 8" Imaging Newtonian OTA Specifications:

  • Optical Design: Newtonian Reflector
  • Aperture: 203 mm (8")
  • Focal Length: 800 mm
  • Focal Ratio: f/4
  • Finderscope: 8x50 Optical finder scope
  • Mirrors: Borosilicate glass mirrors
  • Optical Coatings: Fully multi-coated mirrors
  • Tube Rings: Includes 2 tube rings with Vixen-style dovetail rail

Note: The Sky-Watcher 8" Quattro OTA does not include a mount, a tripod, or eyepieces. These can be purchased separately from OPT to suit your particular needs.

Additional Information

Additional Information

SKU SW-S11210
UPC Code 50234112109
Manufacturer Sky-Watcher
Telescope Series Sky-Watcher Newtonian
Optical Design Newtonian Reflector
Mount Type None - Optical Tube Only
Telescope Aperture 8" or 203mm
Telescope Focal Length f/4
Telescope Focal Ratio 800mm
Focuser Size 2"
Manual or Electronic Focusing? Manual
Focusing Speeds Two-Speed
Tube Color or Finish Gloss Black
Finder Included 8 x 50 Optical Finder
Included Items

Included Items

  • Sky-Watcher Quattro 8" Imaging Newtonian Telescope OTA
  • 8x50 Optical Finder
  • Two Tube Rings
  • Vixen Style Dovetail Bar
  • 2" Dual Speed 10:1 Focuser
Questions & Answers

Product Questions

How heavy is the 8" sky-watcher Quattro?
Does this 8-inch imaging newt have enough backfocus to incorporate the S-W recommended coma corrector and a typical flip-mirror in front of a Canon DSLR?
How much back focus does this 8" telescope have? Does it have enough back focus to use a S-Big St-4000 camera and an AO-8 adaptive optics unit?
Hi, I need to know which type of focal reducer (listed below) could be used by judging from the back focus?
1) ASA 2-inch Newton Coma Corrector and 0.73x Reducer for Astrophotography, 2) Baader 2" Newtonian Coma Corrector MPCC Mark III - from f/3,5 to f/6, 3) Baader RCC Newton Coma Corrector - triplet lens - long distance. Then, I would like to know the distance from the focuser end to the focal plane. Thanks!
Hello! A Sky Watcher AZ EQ5 mount can handle this telescope for astrophotography? Thank you!
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