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Telescopes > Celestron > CGEM II > Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo
Product no.: 52286

Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo

$ 7,700.00 incl. VAT, plus shipping costs
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Product description

More about the series CGEM II...

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.

CGEM II mount

Celestron has updated its popular CGEM mount. Version 2 features a sturdier tripod, USB port, dual dovetail clamp for Losmandy and Vixen standards, improved ergonomics and firmware!

But it has not changed the tried and tested features of the CGEM, which continues to be a highly reputable mount for astrophotography - safely carrying Celestron SC OTAs of up to 11-inch (279mm) aperture for astrophotography purposes. Of course, you can also use the CGEM with telescopes from other brands, whether refractors or medium-sized Newtonian telescopes. The dual saddle clamp is suitable for the two common prism rail formats (also known as dovetail rails). The saddle clamp has two large, handy screws that can even be easily operated when wearing gloves. Since the clamp engages over its entire width with the prism rail and not just the screws themselves, no damage to the rail can occur during setting up.

Additional advantages of the CGEM II

  • the tripod legs are marked, allowing you to extend the legs to a consistent length and easily remember your preferred length.
  • built-in All-Star Polar Alignment by Celestron to align the mount using any star. So you do not need a polar finder and do not have to separately north align. You do not even need a clear view of the Pole Star! The screw for adjusting the polar height is large and convenient. This is an important advantage, as the polar height adjustment must be done with the weight of the OTA present.
  • large database of all popular deep sky objects, catalogued by name and catalogue number; the most famous double, triple and quadruple stars as well as variable stars and objects within the solar system.
  • Permanently Programmable Periodic Error Correction (PPEC)
  • double-line, 16-character LCD hand control with backlit buttons. The hand controller has a USB port for easy connection to the PC for firmware updates of the mount and hand controller.
  • tracking beyond the meridian by up to 30° - so that long-term exposure astrophotography does not have to be suddenly interrupted.

The CGEM II is between the AVX and CGX mounts in Celestron's range of modern equatorial GoTo mounts. For beginners, we recommend the low-priced AVX - which has all the advantages of NexStar + electronics, but is not mechanically designed to carry large OTAs. The CGX mount meets the highest demands of astrophotographers, even when carrying heavy equipment. Finally, the CGEM II is an excellent compromise between carrying capacity, performance and price. It is the workhorse of sophisticated astrophotographers.

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
Resolving capacity
0,41
Limit value (mag)
14
Light gathering capacity
1589
Max. useful magnification
558
Coating
Starbright XLT
Tube material
Aluminium
Tube length (mm)
610
Tube weight (kg)
13
Focal length (mm)
2800
Aperture ratio (f/)
10
Tube construction
Full tube

Reflector


Secondary mirror obstruction
34
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


Mounting type
Equatorial
GoTo control
yes
Polar elevation setting (°)
15 - 70
Motors
Servomotors
Encoder
yes
Weight (kg)
18
Load capacity (kg)
18
Power supply
12

GoTo control


GPS
optional
Software
NexStar
GoTo Language
German, English, French, Spanish, Italian
Alignment method
2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
Database
40.000
Interfaces
2x Aux, USB 2.0, Autoguider
Remote
Celestron PWI

Tripod


Tripod leg diameter (mm)
51
Type
Tripod
Material
Steel
Weight (kg)
9

Included accessories


Counterweights (kg)
2x7,7
Power pack
no
cigarette lighter socket
yes
Prism rail
Losmandy-Style
Finder scope
9x50
Polar finder scope <p>
no
Transport cases
no
Deviating optics
2", 90° star diagonal
Corrector
integrated
2'' eyepieces
16mm

General


Series
CGEM II

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
yes
Advanced
yes
Observatories
yes

Recommended accessories

Telescope accessories > Prisms & Diagonal mirrors (5)
Diagonal mirror

TeleVue Diagonal mirror Everbrite SC 90° 2"

$ 609.00*
Telescope accessories > Transport & storage (6)
Carry case

Oklop Carry case Padded bag for C11 telescopes

$ 97.00*
Telescope accessories > Dew shields & Ventilation (6)
Soft dew shield cap

Astrozap Flexible dew shield for Celestron EdgeHD-SC 279

$ 164.00*
Telescope accessories > Cables & power supplies (9)
Power pack

Baader 60W / 12.8V / 5A outdoor power cable

$ 74.00*
Telescope accessories > Other (7)

Baader 2'' ClickLock SC clamp

$ 96.00*
Eyepieces (3)
Eyepiece

Omegon LE Series Eyepiece, 14.5mm, 1.25''

$ 149.00*
Eyepieces (4)
Eyepiece

Omegon SWA 38mm eyepiece, 2”

$ 179.00*
Eyepieces (4)
Eyepiece

Omegon Ultra Wide Angle eyepiece 9mm 1,25"

$ 69.00*
Eyepieces (4)

Omegon Suitcase with eyepieces and accessories

$ 199.00*
Eyepieces > Other (4)
Reticle eyepieces

Omegon Reticle eyepieces Illuminated crosshair eyepiece, 12.5mm

$ 89.00*
Filters > Moon filters & Polarizing filters (3)
Filters

Omegon Filters 2'' Moon filter 25% Transmission

$ 24.90*
Filters > Nebulae filters (5)
Filters

Omegon Filters 1.25'' deep sky filter

$ 89.00*
Filters > Other (1)

Omegon 2'' filter wheel

$ 189.00*
Astrophotography > Camera adaptor (7)
Adaptors

Celestron Adaptors T adapter for EdgeHD 9.25"/11"/14"

$ 119.00*
Astrophotography > Other (8)

Celestron Reducer 0.7x EdgeHD 1100

$ 1,310.00*
Mounts & accessories > Controls (4)

Celestron WLAN-Modul SkyPortal Wi-Fi

$ 174.00*
Mounts & accessories > Other (3)
Pole finder

Celestron polefinder for AVX, CGEM, CGEM II and AS-GT

$ 76.00*
Observatories (1)

Omegon Tent observatory

$ 189.00*
Media (3)

John Wiley & Sons Astronomy For Dummies

$ 24.90*
Outdoor > Lamps (3)
Astronomy torch

Explore Scientific Astronomy torch Astro R-Lite

$ 14.90*
Globes & Maps (1)
Continental map

Oculum Verlag Sky Quality Map Europe

$ 18.90*
Solar Observation (1)
Solar Filters

Baader AstroSolar telescope solar filter ASTF 280mm

$ 195.00*
Maintenance & Cleaning > Lens cleaners (4)

Celestron Professional lenses cleaning set

$ 26.90*
Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 4.90*

*All prices include VAT plus shipping costs.

Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo
Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo
Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo
Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo
Celestron Schmidt-Cassegrain telescope SC 279/2800 EdgeHD 1100 CGEM II GoTo

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