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Celestron EdgeHD 11" Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings

SKU: CNOTA11EHD MFR: 91050XLT
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Key Features

  • Capture stunning celestial views with the Celestron 11" EdgeHD optical tube.
  • Enjoy high-definition images across a wide field with EdgeHD telescope optics.
  • Achieve 660x highest magnification for detailed lunar and planetary observations.
  • Features StarBright XLT coatings for maximum light transmission & bright images.
  • Large 11-inch aperture gathers ample light, revealing faint deep-sky objects.
  • Includes a 23mm Luminos eyepiece for comfortable, wide-field astronomical viewing.
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Questions & Answers

Shopper : Why Did You Choose This?Larold O : Great Reviews, great focal length and F/10. Plus some options with a reducerRobert G : Wanted it!CLAUD D : I am buying this to replace my Nexstar SE 8" SCT. Based on my experience with my current Celestron SCT and on the reviews for the Edge HD 11" it appears to be the best for me. The flat field makes it a great scope for DSO astrophotography as well as visual observation.JAMES R : The best I could afford!TERRY T : It’s the size i needPETER K : I needed a high quality scope for deep sky astro imaging. This scope is perfect in that its optics are outstanding, and it can be used at three different focal ratios.

Reviews about this item

Review Summary

2021-08-09T08:30:13

Rated 5 out of 5

The best Telescope

I've had it with me for a year and it totally changed my vision to heaven, very good, I haven't even had to Collimate it yet.

ARTURO B.

2020-10-02T08:24:58

Rated 5 out of 5

Lovin’ it!

I Love it! And got a good deal from Adorama!

Dave

2011-12-11T19:00:00

Rated 5 out of 5

Awsome !

This is the best SCT I have owned. The views are Incredible. Very sharp. Worth the money.

astro R.

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Celestron EdgeHD Specifications

Optical Tube

Optical Tube

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  • Optical Design

    EdgeHD

  • Aperture

    11" (279.4mm)

  • Focal Length

    110" (2800mm)

  • Focal Ratio

    f/10

  • Focal Length of Eyepiece 1

    0.91" (23mm)

  • Magnification of Eyepiece 1

    122x

  • Finderscope

    9 x 50

  • Star Diagonal

    2" with 1.25" adapter

  • Optical Tube

    Aluminum

  • Highest Useful Magnification

    660x

  • Lowest Useful Magnification

    40x

  • Limiting Stellar Magnitude

    14

  • Resolution (Rayleigh)

    0.5 arc seconds

  • Resolution (Dawes)

    0.42 arc seconds

  • Light Gathering Power

    1593x (Compared to human eye)

  • Secondary Mirror Obstruction

    3.75" (95mm)

  • Secondary Mirror Obstruction by Diameter

    34%

  • Secondary Mirror Obstruction by Area

    12%

  • Optical Coatings

    StarBright XLT

  • Dovetail

    CGE Dovetail Bar

  • Dimensions (L x Dia.)

    24 x 12.3" (610 x 312.42mm)

  • Weight

    28 lbs (13kg)

23mm Luminos Eyepiece

Jump to...
  • Focal Length

    23mm (0.91 in)

  • Angular Field of View

    82 Degree

  • Eye Relief

    0.79" (20mm)

  • Field Stop Diameter

    1.46" (37mm)

  • Optical Coatings

    Fully Multi Coated

  • Optical Design

    6 Element

  • Size

    2" (50.8mm)

  • Parfocal

    Yes

  • Weight

    16.2 oz (459.25g)

  • UPC Code

    050234105095

About Celestron EdgeHD

FEATURED REVIEWS

Awsome !

By astro R.

This is the best SCT I have owned. The views are Incredible. Very sharp. Worth the money.

The best Telescope

By ARTURO B.

I've had it with me for a year and it totally changed my vision to heaven, very good, I haven't even had to Collimate it yet.

When you're seeking a high-quality, advanced telescope for celestial observation, look no further than the EdgeHD 11" Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings. This innovative and sophisticated telescope is designed to deliver aberration-free, high-definition views of the universe, making it a top choice for both amateur and professional astronomers.

The EdgeHD 11" is an aplanatic, flat field Schmidt-Cassegrain telescope, designed to produce sharp, clear images across a wide visual and photographic field of view. Unlike many optical designs that claim to be "astrographs", the EdgeHD 11" ensures pinpoint stars across a flat focal plane, providing true astrograph quality. This means that even when used with the flat chip sensor of a digital camera, stars will appear in focus right to the edge of the field of view.

The EdgeHD 11" offers superior edge performance, creating rounder, more pleasing stars, and improving resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron's StarBright XLT optical coatings on every surface, you can expect maximum light throughput across the widest visual and photographic spectrum.

The telescope tube has been redesigned with mechanical features such as mirror clutches and tube vents. The mirror clutches hold the mirror in place and reduce image shift during long exposure astro-images, while the tube vents allow hot air to be released from behind the primary mirror, ensuring dust-free operation.

The EdgeHD 11" is also 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. This versatility makes the EdgeHD 11" the most adaptable imaging telescope available today.

The EdgeHD 11" comes with a 23mm Luminos Series 2" Eyepiece, offering a wide 82-degree field of view. The eyepiece is fully multi-coated for crisp, sharp views and is parfocal, meaning you can switch out eyepieces during observing sessions with little or no additional focusing required. The eyepiece body is made of polished and anodized aluminum, with a rubber grip for secure handling and smooth control of the retractable eyecup.

Every EdgeHD 11" that ships has been individually tested for surface quality of each optical component and with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This guarantees that the EdgeHD 11" will perform in the field and deliver high-quality astroimages.

In summary, the EdgeHD 11" Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings is a durable, high-quality telescope that offers advanced features and sophisticated design for an exceptional stargazing experience.

Celestron EdgeHD Features

  • 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 50-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 9x50 finderscope, 2" mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Product Documents

User Manual

Key Features

  • Capture stunning celestial views with the Celestron 11" EdgeHD optical tube.
  • Enjoy high-definition images across a wide field with EdgeHD telescope optics.
  • Achieve 660x highest magnification for detailed lunar and planetary observations.
  • Features StarBright XLT coatings for maximum light transmission & bright images.
  • Large 11-inch aperture gathers ample light, revealing faint deep-sky objects.
  • Includes a 23mm Luminos eyepiece for comfortable, wide-field astronomical viewing.

What's in the box:

  • EdgeHD 11 " Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings
  • 23mm Luminos Eyepiece (2 ")
  • 9x50 Finderscope
  • 2 " 90 Degree Star Diagonal
  • 1.25 " Eyepiece Reducer Adapter
  • Celestron 2 Year Limited Warranty