Join Our Mailing List

Celestron C-11 A Telescopes w/ FREE UPS

Celestron C-11 A Telescopes
Product CodeCI-TS-C11A
List Price$4,079.00
Sale Price$2,398.99
You Save$1,680.01 (41%)
Qualifies for Free Shipping*
PrintBest Deal GuaranteeAsk An ExpertRFQDeal Notification Bookmark & Share
Models
Included in Price
Add $56.96
Special Online Bundle Sale (Limit one per order)Bundle Price
Streamlight Key-Mate Flashlights$2,398.99
Celestron Ultima LX Series Telescope Eyepieces$2,547.99
Celestron Telescope Eyepiece Filter Accessory Kit - 94303 - 2009 Brilliance Awards Expert Choice Winner: Best Telescope Eyepiece Value$2,523.98
Celestron NexImage CCD Solar System Imager 93712$2,498.89
Celestron Telescopes Barlow Lenses$2,474.94
Celestron Oxygen III Narrowband Filters$2,468.89
Celestron Telescope Solar Filters$2,478.89
Celestron UHC / LPR Filter$2,467.94
Celestron Telescopes Erect Image 1-1/4\\&qout; Diagonals$2,440.89
Vixen Moon Glass Filter 37222$2,448.94
Celestron Telescopes Lens Shades$2,428.49
Celestron Sky Maps Chart - Illustrated Star Map Atlas / Deep Sky objects Reference Guide 93722$2,427.98
Celestron Green Laser Optical Kit - UpClose 10x50 Binoculars, Green Laser Pointer, Red LED Flashlight 72105$2,435.59
Celestron Telescope T-Ring Adaptors$2,426.98
Celestron Telescope Moon Filter - 1-1/4\\&qout; 94119-A$2,412.98
 

Celestron C-11 A Telescopes Product Info

Celestron C-11 A is 11.0"/279mm Aluminum Schmidt-Cassegrain Telescope Optical Tube Assembly (2800mm f/10.0)

Now you can have your own a la carte assemblage of your preferred optical tube and mount. Celestron-C11A Schmidt-Cassegrain Telescopes utilize the multicoated Starbright coatings group. Highly reflective coatings are used on the mirrors, with anti-reflective coatings employed on the correcting lens for increases in light transmission. Celestron's optical systems internal baffling ensures the highest contrast levels. To provide consistent customer satisfaction and high performance, CelestronC11-A Optical Assembly utilizes the same superior optics regardless of their size or configuration.

Celestron C 11 A Schmidt-Cassegrain Telescopes Optical Tube available models:
  • 91067-XLT: Celestron C-11A Schmidt Cassegrain Telescope 11" Optical Tube w/ Star Bright XLT Coating, w/ dovetail slide bar made to fit Celestron CG-5 Mount
  • 91036-XLT: Celestron C-11 A Schmidt-Cassegrain Optical Tube w/ StarBright XLT Coatings

With StarBright XLT Optical System Design you'll see the light.
One of the most important factors in the evaluation of a Schmidt-Cassegrain telescope 's optical system performance is its transmission - the percentage of incoming light that reaches the focal plane. The design of the XLT System accomplishes two crucial objectives: Develop a coating system that is optimized for visual use and for CCD/Photographic imaging.

There are three major components that make up Celestron StarBrightXLT high transmission optical system design:

1. Unique enhanced multi-layer mirror coatings:
Celestron mirror coatings are made from precise layers of Al (Aluminum), SiO2 (quartz) and TiO2 (Titanium Dioxide). Reflectivity is fairly flat across the spectrum, optimizing it for both CCD imaging and visual use.

2. Multi-layer anti-reflective coatings:
Coatings are made from precise layers of MgF2 (Magnesium Fluoride), and HfO2 (Hafnium Dioxide). Hafnium gives a wider band pass than Titanium, used in comparable coatings.

3. High Transmission Water White glass :
Celestron Schmidt-Cassegrain optical systems with optional StarBright XLT coatings use Water White glass instead of Soda Lime glass for the corrector lens. Water White glass transmits about 90.5% of light without anti-reflective coatings. That is 3.5% better transmission than uncoated Soda Lime glass. When Water White glass is used in conjunction with StarBright - XLT 's anti-reflective coatings, the average light transmission reaches 97.4% - an 8% improvement!

These three components of Celestron StarBright XLT coatings result in one of the finest coatings available. The peak light transmission for the systems is 89% at 520 nm. The overall system transmission is 83.5% averaged over the spectrum from 400 to 750 nm.

Click here to see details about StarBright XLT.

Specifications for Celestron-C-11-A Telescopes:

Optical Design:   Schmidt-Cassegrain
Optical Diameter:   11.0" (279mm)
Focal Length:   110.2" (2800mm)
Focal Ratio:   f/10
Maximum Useful Magnification:   660x
Resolving Power (arc seconds):   0.41
Optical Coatings:   Starbright or StarBright-XLT coatings
Optical Tube Dimensions:   24.0" (61.0 cm) Long
Eyepiece Barrel Diameter:   1.25"
Finderscope:   9x50mm
Weight:   27.50 lb (12.48 kg)

Features of CelestronC11A Telescopes:

  • Limiting stellar magnitude of 14.7
  • Focus as close as 60' (18 m) for terrestial viewing
  • Secondary mirror obstruction of 13.2%(by area)
  • Aluminum tube materials

Package Contents:

  • Celestron-C 11" A Telescope
  • 9x50mm Finderscope
  • 26mm (107x) Plossl Eyepiece (1.25")
  • Star Diagonal and Visual Back
  • Dovetail Slide Bar
International Shipping Limitations
International Shipping Limitations
Due to the weight and size of this product, no USPS international shipping options are available for this item. Please choose UPS Worldwide Express, UPS Worldwide Expedited, UPS Worldwide Saver or UPS Standard to Canada for international delivery. If you have any questions, feel free to Contact Us or refer to our Shipping Policy for more information.

Celestron C-11 A Telescopes Rating & Reviews

Average Rating
Not Yet Rated
Review & Rate

Celestron C-11 A Telescopes Related Items

Coronado H-Alpha Filters for SolarMax Telescopes
Coronado H-Alpha Filters for SolarMax Telescopes
List price $1,318.80
Sale price $1,099.00
TeleVue ETH-13.0 13mm ETHOS Telescope Eyepiece - 2009 Brilliance Awards Expert Choice Winner: Best Telescope Eyepiece
TeleVue ETH-13.0 13mm ETHOS Telescope Eyepiece
List price $775.00
Sale price $572.99
SALEBEST
Meade ETX-LS 6 in (f/10) Advanced Coma-Free Telescope w/UHTC - 2009 Brilliance Awards Expert Choice Winner: Best Computerized Telescope < $1500
Meade ETX-LS 6 in Advanced Coma-Free Telescope, f/10, w/UHTC
List price $1,798.80
Sale price $1,499.00
SALEBEST
Celestron NexStar 8SE Telescope 11069
Celestron NexStar Schmidt Cassegrain 8SE Telescope 11069
List price $2,598.95
Price after rebate $1,099.00
SALEBEST
Celestron Omni XLT 102mm Refractor Telescopes 21088
Celestron Omni XLT 102mm Refractor Telescope - 21088
List price $817.95
Sale price $399.99
SALEBEST
Celestron Omni XLT 150 R Telescope 21094
Celestron Omni XLT 150 R Refractor Telescope 21094
List price $1,577.95
Sale price $809.99
NEWSALEBEST

Celestron C-11 A Telescopes Options

Product CodeUPCSKUModels
CI-TS-C11A-91036-XLT05023410369591036-XLT Celestron C 11 A (XLT) Schmidt Cassegrain Telescope optical Tube - w/ StarBright XLT coatings
CI-TS-C11A-91067-XLT05023491036191067-XLT Celestron C 11 A (XLT) SCT 11'' Optical Tube w/ StarBright XLT Coating

Telescopes Related Links