Description
The Skywatcher Quattro 200P 8 Imaging Newtonian is a large aperture astrograph that is designed for astrophotography and visual astronomy. It features a swift f/4 focal ratio and can produce an exposure 6x faster than the average 8-inch f/10 Schmidt Cassegrain telescope. It also features borosilicate mirrors coated with Sky-Watcher's proprietary Radiant Aluminum Quartz (RAQ) which produces 94% reflectivity. The tube is constructed with rolled steel and 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.
Skywatcher Quattro 200P 8" Imaging Newtonian Product Info 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.
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
Package Contents: - Skywatcher Quattro 200P 8" Imaging Newtonian
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