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Home Telescopes Optical Tube Assemblies Celestron Optical Tubes Celestron EdgeHD 14 Inch Optical Tube Assembly
Special offer - The 14" EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images. As a visual instrument EdgeHD optics deliver pinpoint images even with your widest field eyepiece. You can search for all of the Messier Catalog objects and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For astroimaging, the EdgeHD optics produce aberration-free images across your favorite CCD or DSLR camera. All EdgeHD optics are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial ccd detectors, allowing all stars to be in tight focus to the very edge of the chip.Diffraction LimitedSome companies boast that their telescopes give diffraction limited stars in the very center of the field of view . EdgeHD optics not only produce diffraction limited stars on axis, but maintain diffraction limited stars across the entire field of view of many of the most popular astrophotography cameras. Even at the very edge of a full frame camera chip, the EdgeHD delivers diffraction limited stars of only 1 arc seconds.
The EdgeHD optics produce a focal plane more than 3 times flatter than the standard equivalent SCT telescope with diffraction limited stars across the entire Nikon D3 or Canon 5D field of view.Along with the newly designed optics, the EdgeHD also has re-designed mechanics guaranteed to help you get the maximum performance from your instrument. Features include:Mirror Locks To hold the mirror in place and reduce image shift during imaging.Tube Vents - Each vent has an integrated 60 micron micro-mesh filter allowing hot air to be released from behind the primary mirror.Fastar Versatility All EdgeHD optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging. Not only does imaging in the FASTAR configuration allow for exposure times that are 25 times faster than at f/10, but also yields a field of view five times wider. A perfect combination for imaging your favorite wide field objects in a fraction of the time. (FASTAR imaging requires a third party lens assembly in place of the secondary mirror).Specifications:14" EdgeHD Optical Tube AssemblyAluminum Optical TubeCelestron's premium StarBright XLT coatings3910mm focal length (f/11)23mm Axiom - 2"9x50 finderscope to help accurately find objects2" diagonal provides more comfortable viewing position when observing objects that are high in the skyMirror 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 imagingIncludes dovetail rail compatible with CGE mount
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