Used Celestron EdgeHD 800 OTA, Losmandy rails top and bottom

Condition: Looking at the photos, this is an EdgeHD 800 OTA . . . mounted on a CPC fork arm mount.  The OTA is in very good condition; the mount is in poor condition.  We are leaving it mounted this way to give you a choice:  1)  You can try to fix the mount and use it that way; or, 2) with the two Losmandy rails already in place, top and bottom, deforking the tube will be a straightforward process, and you can put the OTA on the mount of your choice.  

The optics are mostly clean, with only a tiny amount of spotting at the six o'clock position; see photos.

It's the CPC fork arm mount that is very problematic, which you can either ditch or fix.  The motor sounds awful in azimuth, and we got an "bootloader 16" error message upon firing it up.  This error "went away" after turning it off and on again a few times.   Additionally, the azimuth clutch catches:  when you loosen the clutch to turn the scope manually, it will catch, lock up, and prevent any further movement.  You have to loosen the azimuth clutch significantly to prevent it from catching.  

Other than the two Losmandy rails, this includes no additional accessories:  no handset, no AC adapter, no diagonal, no finder, no CPC tripod (shown beneath the OTA in the photos).  This is just the OTA.  We are pricing this as if it were just the OTA and rails alone.  

We do not have the packing boxes for this, so this is for in-store pickup only.  

• Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces.
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging.
• Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories.
• Celestron’s premium StarBright XLT coatings provide maximum light transmission.
• A 1.25” mirror diagonal is included.

See the Universe in HD
EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.

True Astrograph Quality
Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today. Learn more about EdgeHD technology.

Improved Performance
Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.

Mechanical Features
In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.

• Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).
• Tube vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.
• Fastar versatility - EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging.

Individually Tested
Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.

Specifications