Sky-Watcher

Quattro 8" 200P Imaging Newtonian

SKU: S11210


  • Sale
  • $830.00
  • Regular price $925.00

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$49 UPS Ground shipping for Telescopes Due to their size and bulk, or the need for extra packing, we are not able to offer free shipping on some Telescopes and Mounts, but offer a steep discount off the actual cost.


Description
  • 205mm aperture, 800mm focal length
  • Fast f/4 focal ratio
  • Parabolic mirror designed for imaging with 94% reflectivity
  • 10:1, dual-speed, 2-inch Crayford-style focuser
  • Oversized secondary mirror produces greater illumination for full-frame DSLR and CCD cameras
  • Tube rings, mounting plate, eyepiece adapters, and 9x50 finderscope included

The Quattro imaging Newtonian is an affordable, large aperture astrograph, ideal for users searching for a fast imaging system that will work for both astrophotography and visual astronomy. Boasting a swift f/4 focal ratio, this astrograph can produce an exposure 6x faster than the average 8-inch f/10 Schmidt Cassegrain telescope. Although designed as an imaging optical tube, these Newtonians also produce bright and detailed viewing for visual astronomy. 

Like all Sky-Watcher reflectors, the Quattro imaging Newtonian features borosilicate mirrors coated with Sky-Watcher’s proprietary Radiant ™ Aluminum Quartz (RAQ™), producing 94% reflectivity. The tube is constructed with rolled steel, then coated with Sky-Watcher’s signature glossy metal-flake Black Diamond finish. The OTA uses an oversized secondary mirror providing greater illumination for DSLRs and CCDs using full-frame sensors, and an optional coma corrector is available for those who want to take their imaging to the next level.

Included with the Quattro Newtonian is a 10:1 dual-speed 2-inch Crayford-style focuser, 1.25 and 2-inch eyepiece adapters, a 9x50 finderscope, tube rings, and a V-style dovetail plate.

Specifications
SKU S11210
UPC 050234112109
Optical Info
Optical Design Newtonian
Mirror Coatings 94% Aluminum
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)
Barcode: 050234112109