Skywatcher Quattro 200P Imaging Newtonian 8"
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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
Optical Design: Newtonian
Mirror Coatings: Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
Glass Type: Borosilicate
Primary Aperture: 203mm
F/Ratio: 4
Focal Length: 800mm
Secondary Diameter: 70mm
Secondary Obstruction (by diameter): 34%
Secondary Obstruction by Area: 12%
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%
Focuser: 2" Dual Speed Crayford
OTA Length (Retract/Ext.): 28"
OTA Outer Diameter: 9.375"
OTA Weight (with accessories): 9.25
In The Box
9x50 Finder
Mounting Rings/V-Rail
