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Celestron C11-A XLT (CG-5) Optical Tube Assembly - Losmandy Style Dovetail

Name: Celestron C11-A XLT (CG-5) Optical Tube Assembly - Losmandy Style Dovetail
Brand: Celestron
SKU: C11OTA
Price: 2999 EUR
Rating: 5 (2 reviews)

Powerful Schmidt-Cassegrain telescope with 11" aperture for pbsering and astrophotography - for observatories and mobile astronomy.

Schmidt-Cassegrain Optical Tube Assembly with 280 mm (11") aperture and 2800 mm focal length (f/10)

Aluminum optical tube with Losmandy style dovetail bar, matches mounts like CGE, EQ6 and most Losmandy mounts.

Ready for FastStar - HyperStar - astrophotography with f/2

Celestron´s premium StarBright XLT coatings

Primary mirror focusing provides a large focusing range, for example for correctors or binoviewers

Extensive scope of delivery like 9x50 finder with robust bracket, 1.25" star diagonal and 40 mm Plössl eyepiece for 70x magnification.

XLT Coating

Manufacturer: Celestron

Product number: C11OTA

EUR 2.999,00

incl. 19 % VAT (DE)

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excl. 45.95 € shipping costs (DE)

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rating: 5.0 of 5

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Celestron C11-A XLT (CG-5) Optical Tube Assembly - Losmandy Style Dovetail

Powerful Schmidt-Cassegrain telescope with 11" aperture for pbsering and astrophotography - for observatories and mobile astronomy.

Schmidt-Cassegrain Optical Tube Assembly with 280 mm (11") aperture and 2800 mm focal length (f/10)

Aluminum optical tube with Losmandy style dovetail bar, matches mounts like CGE, EQ6 and most Losmandy mounts.

Ready for FastStar - HyperStar - astrophotography with f/2

Celestron´s premium StarBright XLT coatings

Primary mirror focusing provides a large focusing range, for example for correctors or binoviewers

Extensive scope of delivery like 9x50 finder with robust bracket, 1.25" star diagonal and 40 mm Plössl eyepiece for 70x magnification.

XLT Coating

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Technical data..
In the box..
Reviews..

Celestron C11-A XLT 280/2800mm Schmidt-Cassegrain OTA with Losmandy Style Dovetail

The Celestron C11 is one of the most popular telescopes for astronomy and astrophotography for decades. The good quality of the optics makes this Schmidt-Casegrain one of the most versatile telescopes on the market.

The C11 provides sufficient aperture for the observation of thousands of nebulae, star clusters and galaxies. Due to the Starbright coating, the image is especially bright.

Many planetary observers swear by the proven optics of the C11, some of the best photographs of planets were taken with the C11. Contrast and sharpness convince even critical observers.

Together with the right corrector, the C11 is also a fine telescope for astrophotography. Due to the primary mirror focusing system, the application of correctors and focal reducers is possible without problems.

One of the big advantages of the C11 is the mobility. We don´t know another telescope with comparable aperture which can used as well for mobile astronomy. With its weight of only 12.5 kg, the C11 is supported by mounts like the CGEM or the EQ6 with sufficient stability reserves.

The advantages of the Celestron Schmidt-Cassegrain system:

The combination of primary mirror and convex secondary mirror allows for a short design. This benefits the transportability.

Focusing is achieved by moving the primary mirror, thus you can attach practically all accessories like binoviewers or corrector systems for astrophotography.

The 2" and 3" SC thread allows for easy adaption of various accessories. Whether you thread everything or attach via 2" or 1.25" push fit, there are suitable adapters for anything.

Celestron uses pre-loaded ball bearings for the primary mirror focusing, so shifting has no chance with the C11.

The C11 is upgradable up the f/2 astrograph via the HyperStar system.

Astrophotographic results obtained with this telescope on Astrobin

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

Telescope system:	Schmidt-Cassegrain reflector
Aperture (mm):	279.4 mm (11 in)
Focal Length:	2800 mm (110 in)
Focal Ratio:	f/10
Resolution (Dawes):	0.42 arc seconds
Resolution (Rayleigh):	0.5 arc seconds
Limiting Stellar Magnitude:	14 mag
Highest Useful Magnification:	560x
Tube Length:	24 in (610 mm)
Tube Diameter:	12.4 in (312.42 mm)
Secondary Mirror Obstruction:	95.3 mm
Connection at eyepiece side:	3" and 2" SC thread and 1.25" receptacle - 2" adapter see recommended accessories
Dovetail Bar:	Losmandy Style
Optical Tube Weight:	12.2 kg (27.5 lbs)