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EdgeHD 8 Optical Tube Assembly
EdgeHD 8 Optical Tube Assembly
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* 8" EdgeHD Optical Tube Assembly
* Aluminum Optical Tube
* Celestron's premium StarBright XLT coatings
* 2032 mm focal length (f/10)
* 40 mm eyepiece included (51x)
* Visual back allows for use with 1.25" accessories
* 9x50 finderscope to help accurately find objects
* Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
* Mirror Support Knobs hold the mirror in place and reduces image shift during imaging.
* Tube vents with integrated 60 micron mesh filter allowing hot air to be released from behind the primary mirror.
* Fastar Compatible optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging
* Includes dovetail rail compatible with CGE mount

OPTICAL DESIGN: Aplanatic Schmidt
APERTURE: 203.2 mm (8 in)
FOCAL LENGTH: 2032 mm (80 in)
FOCAL RATIO: 10
FINDERSCOPE: 9x50
OPTICAL TUBE: Aluminum
EYEPIECE 1: 40 mm (1.57 in)
MAGNIFICATION 1: 51 x
STAR DIAGONAL: 1.25
OPTICAL COATINGS: StarBright XLT
SECONDARY MIRROR OBSTRUCTION: 2.7 in (68.58 mm)
SECONDARY MIRROR OBSTRUCTION BY AREA: 11.4 %
SECONDARY MIRROR OBSTRUCTION BY DIAMETER: 33.8 %
OPTICAL TUBE LENGTH: 17 in (431.8 mm)
OPTICAL TUBE WEIGHT: 14 lb (6.35 kg)
DOVETAIL COMPATIBILITY: CGE Mount

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