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Telescopes > Celestron > CGX-L > Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGX-L GoTo
Product no.: 54047

Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGX-L GoTo

$ 10,300.00 incl. VAT, plus shipping costs
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Product description

More about the series CGX-L...

The Celestron EdgeHD telescope: Corrected image - sharp right up to the edges!

EdgeHD is the name for Celestron’s “aplanatic Schmidt Cassegrain telescope”. After over 50 years of success, Celestron has revolutionised the classic Schmidt Cassegrain telescope.

EdgeHD telescopes ( "Edge High Definition") are true astrographs. This optical system delivers distortion-free, sharp images right to the edge of the visual field. This means that not only the coma outwith the optical axis is corrected, as is the case in currently available “coma-free” lens designs, but also field curvature.

Lots of optical systems are advertised as “astrographs”. As desired, they display stars with pin-sharp clarity, but along a curved image plane. Photographing this using a camera results in a noticeable image field curvature which rises towards the edge of the image field, resulting in increasing star size and aberations with larger sensors. The stars at the edge expand into small rings (“doughnuts”). As well as the coma, the Celestron Edge HD telescopes correct field curvature right up to the edge of the image. This also significantly improves resolution and magnitude limits in comparison to rival optical systems.

The XLT multi-coating helps to give the EdgeHD scopes a significant performance boost compared to similar systems on the market.

The Edge HD telescopes’ mechanisms and lens tube have been fully overhauled:

  • mirror clamps hold the primary mirror securely in any desired position without putting pressure on the optical elements. The image is stable, even during long exposure times.
  • Air vents behind the primary mirror provide fast air exchange so that the lens cools amazingly quickly. Thanks to an air filter system, dust is prevented from entering the lens tube.

CGX-L mount - the L stands for Large, because the CGX-L is the big sister of the Celestron Mount CGX GoTo.

The load capacity has been increased from 25 kilograms to 34 kilograms as compared to the CGX. This means that the CGX-L can also carry the largest Celestron OTAs plus photographic accessories. A key role is played by the generously dimensioned 144mm worm gears, which allow smoother operation even with heavier telescopes, as well as the 270mm extended dovetail clamp, which holds even the larger telescopes securely.

Despite the higher load capacity, the CGX-L is an easy to transport mount for portable use. It comes with an excellent tripod for this purpose.

However, the CGX-L is also very well suited for smaller observatories and remote operation. You get a really versatile mount with the CGX-L!

Advantages of the CGX-L in a nutshell

  • increased payload carrying capacity with a still outstanding weight-load ratio
  • additional AUX sockets and auto-guider connection on the DEC axis for better cable management
  • 144mm worm gears
  • 270mm long dovetail clamp
  • steel tripod with 70mm width legs
  • counterweight rod with 31.5mm diameter for heavy loads

Please also read the product description of its little sister - the CGX mount. Apart from the above improvements, the CGX-L has the same technical features.

CGX Equatorial Mount and Tripod:

For eight years, Celestron’s workhorse CGEM mount lineup has been the German Equatorial backbone for telescopes ranging from 6 to 11 inches of aperture. Since that time, many more astro-imagers and planetarium controlled setups have emerged as backyard telescope technology has evolved. Celestron’s engineering team applied their years of experience designing German Equatorial mounts to the all-new CGX EQ, a culmination of all the advancements made to our technologies, value, and ease-of-use.

All-new design:

  • Sturdier and more rigid with quicker dampening time
  • Improved motors provide more torque, better slewing and tracking under heavy loads
  • Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads
  • Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
  • Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags
  • Internal hard stops for both axes prevents cable tension and tripod strike
  • Home sensors allow the mount to always start in the index position regardless of orientation before a power reset
  • Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
  • Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3º-65º latitude range
  • Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle

New improved tripod:

  • 2" steel legs with height index marks for quick leveling
  • "Jack of all trays" can hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories
  • Tripod legs can be collapsed with accessory tray installed for faster setup and transport

Electronics:

  • All-new NexStar+ hand control with USB port
  • Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately)
  • USB 2.0 port, used to connect directly to PC with included software
  • Autoguider port
  • PPEC ready
  • Threaded 12VDC power input barrel connector
  • Internal Real Time Clock (keeps time and site information saved)

The new CGX was designed to better support your telescope for both visual and astro-imaging pursuits. Key design goals included a lower profile EQ head, which provides a more compact and therefore more stable setup; a better drive system; remote operation-friendly with home and limit optical sensors; easier polar alignment adjustments; and better cable management. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and transport. The CGX is our new Equatorial backbone to support a wide range of telescopes.

Control software from PlaneWave Instruments for Celestron's CGX and CGX-L mounts:

PWI Telescope Control opens up the full precision of these mounts. A USB connection from the mount to your PC means the Sky Viewer display makes it easy to find targets. Or you can search for your targets in the extensive object database. PWI also has a connection to the SIMBAD astronomical online database for even more astronomical objects.

PWI uses PointXP Mount Modelling - providing numerous reference stars for the highest accuracy possible. PointXP (also used in the StarSense AutoAlign module) offers more accuracy than a classic hand control box. By using numerous reference stars, PWI can accommodate multiple alignment errors, including device deflection - as a result, GoTo accuracy is increased.

Features of PWI software

  • PointXP Mount Modelling, accepts as many reference stars as you want.
  • developed by Celestron in partnership with PlaneWave Instruments
  • future updates will include additional features and enhancements
  • Sky Viewer Star chart for easy location of astronomical objects
  • extensive object database, including online database

The software runs on Windows 7, 8 and 10. You can download it via the Downloads tab. You will also find an English-language manual in PDF format available there.

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page "Telescope ABC" beginners handbook with every telescope.

Specifications

Optics


Type
Reflector
Type of build
EdgeHD-Cassegrain
Aperture (mm)
279
Focal length (mm)
2800
Aperture ratio (f/)
10
Resolving capacity
0,41
Limit value (mag)
14
Light gathering capacity
1590
Max. useful magnification
558
Coating
Starbright XLT
Tube material
Aluminium
Tube length (mm)
610
Tube weight (kg)
13
Tube construction
Full tube

Reflector


Secondary mirror obstruction
12
Secondary mirror diameter (mm)
95
Ventilation for central mirror
yes

Focuser


Gear reduction
without
Connection ( to eyepiece)
2
Connecting thread (telescope side)
SC
Type of build
SC thread

Mount


Weight (kg)
21,3
GoTo control
yes
Type of build
CGX-L
Encoder
yes
Mounting type
Equatorial
Load capacity (kg)
34
Polar elevation setting (°)
3 - 65
Power supply
12
Diameter of counterweight bar (mm)
31,5
Mounting saddle
Losmandy & Vixen
Drive type
Worm wheel

GoTo control


GPS
optional
Software
NexStar
Interfaces
2x Aux, USB 2.0, Autoguider
Database
40.000
Tracking speeds
sideral, solar and lunar
GoTo Language
German, English, French, Spanish, Italian
Remote
Celestron PWI

Tripod


Tripod leg diameter (mm)
70
Type
Tripod
Material
Steel
Weight (kg)
21
Accessory plate
yes
Max. tripod height (cm)
134
Min. tripod height (cm)
91

Included accessories


Prism rail
Losmandy-Style
Counterweights (kg)
2x 10
Deviating optics
2", 90° star diagonal
Eyepiece adaptor
1,25" - 2"
Finder scope
9x50
2'' eyepieces
16mm

General


Series
CGX-L
Total weight (kg)
75,3

Area of application


Astrophotography
yes (very good)
Moon & Planets
yes (very good)
Nature Observation
no
Nebulae & galaxies
yes
Sun
no (Only with appropriate Sun filter)

Recommended for


Beginners
no
Advanced
yes
Observatories
yes

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*All prices include VAT plus shipping costs.

Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGX-L GoTo
Toothed belt drive

Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGX-L GoTo
Convenient carrying handle

Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGX-L GoTo
Compatible with Celestron StarSense AutoAlign and Celestron SkyPortal WiFi

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