Celestron EdgeHD 14"" - General Features * 14"" EdgeHD Optical Tube Assembly * Aluminum Optical Tube * Celestron"s premium StarBright XLT coatings * 3910mm focal length (f/11) * 23mm Axiom - 2"" * 9x50 finderscope to help accurately find objects * 2"" 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 Specifications * Optical Design : Aplanatic Schmidt * Aperture : 355.6 mm (14 in) * Focal Length : 3910 mm (153.94 in) * Focal Ratio : f/11 * Finderscope : 9x50 * Optical Tube : Aluminum * Eyepiece 1 : 23 mm (0.91 in) * Magnification 1 : 170 x * Star Diagonal : 2"" w/1.25"" adapter * Optical Coatings : StarBright / XLT * Secondary Mirror Obstruction : 4.5 in (114.3 mm) * Secondary Mirror Obstruction by Area : 10.3 % * Secondary Mirror Obstruction by Diameter : 32.1 % * Optical Tube Length : 31 in (787.4 mm) * Optical Tube Weight : 46 lb (20.87 kg) * 10% INSTANT SAVINGS! REGULAR $5799 SALE ENDS 8/31 * Giant 14-inch EdgeHD aluminum optical tube * 3910mm focal length and 170 mag.; 9x50 finderscope included * StarBright XLT coating for optimal light transmission * 23mm Axiom eyepiece