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If you are an astro-photographer looking for a fast optical system at a fantastic price then the Quattro series is for you.

The Sky-Watcher 8" f/4 Quattro Imaging Newtonian has . . .

  • 205mm aperture/800mm focal length f/4 Newtonian reflector optics
  • Fully multi-coated borosilicate mirrors
  • 2” 10:1 ratio dual-speed focuser
  • 8x50 finderscope
  • Tube rings with V-style dovetail bar

The 8" Sky-Watcher Quattro Imaging Newtonian with dual-speed focuser is optimized for wide-field deep space imaging, but can also be used for pleasing visual observing. It incorporates a superbly-figured multi-coated borosilicate optical glass mirror-set. Additionally, the tube length has been slightly shortened to optimize performance for wide-field prime-focus photography. Even better field edge performance for astrophotography, and visual use, can be achieved by adding the Sky-Watcher Quattro coma corrector.

This Sky-Watcher 8" Quattro imaging Newtonian is ultra-fast and incredibly simple to use. The f/4 optical system allows the user to capture wide field images of faint deep space objects such as nebulae, open clusters, and galaxies over six times faster than using an f/10 system. This gives you the ability to acquire more images in less time. The Newtonian optical design is one of the most basic, and therefore trouble-free, systems available to astrophotographers.

Product Manuals

Quattro200_UsersManual.pdf

Tech Details: 

Aperture 8"
Focal Length 800mm
Focal Ratio f/4
Weight 21 pounds
Optical Coatings Fully Multi-Coated
Supplied Eyepiece None
Telescope Type Reflector
View Finder 8x50
Warranty 2 years
SKU S11210
UPC 050234112109
Optical Info
Optical Design Newtonian
Mirror Coatings Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
Glass Type Borosilicate
Primary Aperture (mm) 203
F/Ratio 4
Focal Length (mm) 800
Secondary Diameter 70mm
Secondary Obstruction (by diameter) 34%
Secondary Obstruction by Area 12%
Observational Info
Dawes Limit 0.57
Rayleigh Limit 0.69
Limiting Mag. 14
Minimum Magnification 29
Maximum Magnification 400
Light Gathering (compared to next size down) 78%
General Info
Focuser 2" Dual Speed Crayford
OTA Length (Retract/Ext.) 28"
OTA Outer Diameter 9.375"
OTA Weight (with accessories) 21
Accessories
Included Finder 9x50 Finder
Included Diagonal No
Mounting Accessories Rings/V-Rail
Included Eyepieces None
Included Case No
Corrector No (optional)

Supplied Accessories: 

8x50 Finder Tube Rings with Vixen style dovetail bar

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