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Celestron EdgeHD 1100 OTA - 280 mm f/10 Flatfield SCT

Name: Celestron EdgeHD 1100 OTA - 280 mm f/10 Flatfield SCT
Brand: Celestron
SKU: EHD11-OTA
Price: 4749 EUR

Celestron Edge HD 1100 - 280/2800 mm Aplanatic Flatfield Cassegrain - for mobile operation and for observatories - flat image field for astrophotography

Aperture 280 mm - focal length 2800 mm - focal ratio f/10

Experience Celestron´s 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.

The EdgeHD 1100 is perfect for astrophotography, but offers very fine performance in any other field of amateur astronomy.

Manufacturer: Celestron

Product number: EHD11-OTA

EUR 4.749,00

incl. 19 % VAT (DE)

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excl. 45.95 € shipping costs (DE)

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Celestron EdgeHD 1100 OTA - 280 mm f/10 Flatfield SCT

Celestron Edge HD 1100 - 280/2800 mm Aplanatic Flatfield Cassegrain - for mobile operation and for observatories - flat image field for astrophotography

Aperture 280 mm - focal length 2800 mm - focal ratio f/10

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.

The EdgeHD 1100 is perfect for astrophotography, but offers very fine performance in any other field of amateur astronomy.

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Celestron 1100 EHD 11" Optical Tube Assembly

The 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.

The Celestron XLT multi-coating enhances constrast and brightness even further, for astrophotography as well as for observation. We recommend the EdgeHD for astrophotographers and for dedicated observers who want to use a large aperture as mobile unit.

With 12.7 kg tube weight, the EdgeHD 1100 can still be used mobile. It can be held by a Celestron CGEM mount or the CGEM-DX, even for astrophotography. However, the telescope also makes a good impression in compact obervatories.

The Celestron EdgeHD Telescope advantages:

wide and fully corrected field for astro photography - flat and free of coma.

unrestricted visual suitability

Main mirror lock - prevents the mirror from shifting

Main mirror ventilation for shorter cool-down time

Every HD telescope is Fastar compatible and can be turned into a f/2 Schmidt Camera.

With the StarBright XLT, Celestron disposes of one of the best coatings we know. Thus offering the HD telescopes a very bright and full-contrast picture.

Easy Collimation: guarantees ideal performance every time. Edge HD’s precision-machined mechanics and a spherical secondary mirror make collimation simple and accurate.

Astrophotographic results obtained with this telescope on Astrobin

Here you can find some astrophotographs made with this telescope model: Link to Astrobin

Aperture:	280 mm
Focal length:	2800 mm
Focal ratio:	f/10
Maximum useful magnification:	661x
Limiting visual magnitude:	15.5 mag
Resolution:	0.41"
Diametrical obstruction:	95.25 mm (34%)
Tube length:	609 mm
Tube weight:	12.7 kg
Distance for optimal sharpness in field:	146 mm from the rear support surface of the 3" SC thread to the sensor