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Product Description
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.
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 50-mesh 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/11, 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.
What can I see with a Celestron EdgeHD 14" Optical Tube Assembly (OTA) (91060-XLT)?
Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.
Jupiter with
23mm Eyepiece - 170x Magnification
(Included with This Telescope)
Jupiter with
10mm Eyepiece - 391x Magnification
Sold Separately
Jupiter with
5mm Eyepiece - 782x Magnification
Sold Separately
Moon with 23mm Eyepiece
170x Magnification
(Included with This Telescope)
Moon with 10mm Eyepiece
391x Magnification
Sold Separately
Moon with 5mm Eyepiece
782x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
109x Magnification
Sold Separately
Andromeda with 23mm Eyepiece
170x Magnification
(Included with This Telescope)
Andromeda with 10mm Eyepiece
391x Magnification
Sold Separately
What's in the Box
Specifications
| OPTICAL TUBE INFO: | |
| Optical Design: | EdgeHD |
| Aperture: | 356mm (14") |
| Focal Length: | 3910mm (154") |
| Focal Ratio: | f/11 |
| Focal Length of Eyepiece 1: | 23mm (0.91") |
| Magnification of Eyepiece 1: | 170x |
| Finderscope: | 9x50 |
| Star Diagonal: | 2" with 1.25" adapter |
| Optical Tube: | Aluminum |
| Highest Useful Magnification: | 840x |
| Lowest Useful Magnification: | 51x |
| Limiting Stellar Magnitude: | 15.3 |
| Resolution (Rayleigh): | 0.39 arc seconds |
| Resolution (Dawes): | 0.33 arc seconds |
| Light Gathering Power (Compared to human eye): | 2579x |
| Secondary Mirror Obstruction: | 114mm (4.5") |
| Secondary Mirror Obstruction by Diameter: | 32% |
| Secondary Mirror Obstruction by Area: | 10.00% |
| Optical Coatings: | StarBright XLT |
| Optical Tube Length: | 787mm (31") |
| Optical Tube Diameter: | 400.5mm (15.77") |
| Optical Tube Weight: | 46 lbs (21 kg) |
| Dovetail: | CGE Dovetail Bar |
| Solar Warning | Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present. |
