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EdgeHD 800 OTA Fashion

Original price was: $1,599.00.Current price is: $479.70.
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15 - 22 Mar, 2025
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Description

  • 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 9×50 finderscope, 1.25” mirror diagonal for more comfortable viewing, and 40 mm Plössl 1.25” eyepiece are all 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

          Aperture (mm)

          203.2 mm (8 in)

          Dovetail Compatibility

          CGE Mount

          Finderscope

          9×50

          Focal Length

          2032 mm (80 in)

          Focal Length of Eyepiece 1 …

          40 mm (1.57 in)

          Focal Ratio

          10

          Highest Useful Magnification

          480 x

          Light Gathering Power (Comp…

          843 x

          Limiting Stellar Magnitude

          14

          Lowest Useful Magnification

          29 x

          Magnification of Eyepiece 1

          51 x

          Optical Coatings

          StarBright XLT

          Optical Design

          EdgeHD

          Optical Tube

          Aluminum

          Optical Tube Length

          17 in (432 mm)

          Optical Tube Weight

          14 lbs (6.35 kg)

          Resolution (Dawes)

          0.57 arc seconds

          Resolution (Rayleigh)

          0.69 arc seconds

          Secondary Mirror Obstructio…

          11%

          Secondary Mirror Obstruction

          2.7 in (69 mm)

          Star Diagonal

          1.25

          Title

          Default Title

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