Celestron CGX-L 1100 Rowe-Ackermann 11" - Schmidt Astrograph V2 - 12074

Out of stock
SKU: CEL-12074
Regular price $10,934.00 CAD

Product details

  • SKU CEL-12074

Celestron CGX-L 1100 Rowe-Ackermann 11" -
Schmidt Astrograph V2

  • This Celestron 11" Rowe-Ackermann Schmidt Astrograph V2 includes what you need for doing great astro-imaging
  • Fast, wide-field 11” f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature
  • Large 43.3 mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field will extend even further to 52 mm for larger format sensors, with very little degradation
  • A New Ultra-Stable Focus System (USFS) minimizes any focus shift and mirror flop
  • Integrated air-cooling system features a quiet, high-output 12V MagLev fan and vents with mesh filters to prevent dust ingress
  • Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras
  • This is a breakthrough 11 inch aperture, f/2.2 Optical Tube system designed for professional applications that require both a wide field of view and high resolution
  • A 4-element lens group utilizes extra-low dispersion (ED) glass for images free of false color, coma, and field curvature
  • Celestron's Rowe-Ackermann Schmidt Astrograph (RASA) 11" V2 is the perfect choice for advanced astroimaging tasks and also ideal for use in space surveillance and other scientific applications
  • A 43.3 mm optimized image circle maintains pinpoint stars to the far corners of the largest available sensors
  • Extended spectral range takes advantage of sensor response in the 700-900 nm range, allowing brighter overall images
  • Includes Heavy duty CGX-L computerized equatorial mount with 75-lb payload capacity; the super-High Capacity Mount from Celestron
  • Includes Super-Heavy Duty Steel Tripod, 2.75" Legs

Some Information About the RASA Technology:

  • Celestron’s proprietary XLT coatings, which are high-transmission multi-coatings for lenses and high reflectivity aluminum coatings, ensure good light throughput for the optical system.
  • An integrated cooling fan helps optics cool down to ambient temperature and pulls air through vents with micromesh to prevent dust ingress.
  • Dual dovetail bars offer flexibility to mount the optical tube and conveniently attach additional accessories via “CGE/Losmandy” style dovetails.
  • Two sets of 2x threaded insert holes in the rear cell provide additional mounting options.
  • Move and mount your optical tube with ease using the carrying handle provided on the rear cell.
  • Although not normally needed, there are 3x sets of push-pull screws to adjust the lens group to achieve ideal optical alignment for the entire system.
  • Includes an M48 and a T-thread camera adapter.

Capturing impressive deep-sky astroimages is easier than ever with Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. The short focal length of this Celestron 11" Rowe-Ackermann Schmidt Astrograph V2 also reduces the equatorial tracking demands on your mount. In many cases, autoguiding may not be required (depending upon your tasks).

RASA 11 V2 utilizes the new Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is also compatible with the optional Celestron Focus Motor (#94175-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.

Engineered as a complete astroimaging system, every component of the Celestron 11" RASA 11 V2 Schmidt Astrograph is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or optional imaging filter, every component of the system has been given careful engineeing thought, to work together seamlessly. The Dovetail CGE bars on the top of the optical tube provides a good way to mount optional accessories like a guidescope.

The CGX-L Mount from Celestron is the pinnacle of their fully computerized equatorial mount series. Capable of carrying Celestron’s largest optical tubes with ease, CGX-L is perfect for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, compact design, and innovative features that fully support large telescopes, imaging kits, and the latest in wireless tech accessories. It was designed to be the ultimate support for your telescope for both visual and astro-imaging pursuits. Key design goals included:

  • Larger 144 mm diameter worm wheels, which provide smoother operation and can more accurately drive heavier loads
  • A better drive system design
  • Longer 270 mm dovetail saddle to support larger optical tubes
  • Remote operation-friendly features with home and limit optical sensors
  • Easier polar alignment adjustments
  • Improved cable management
  • Plus, Celestron made mechanical and ergonomic improvements throughout CGX-L to make this mount sturdier, easier to use, and transport.

What's In The Box:

  • 11" Rowe-Ackermann Schmidt Astrograph V2 OTA
  • Dual dovetail mounting bars
  • 42 mm (1.65") T-thread camera adapter
  • 48 mm (1.89") camera adapter
  • Dust cover
  • Fan battery pack
  • CGX-L Equatorial Head
  • CGX-L Tripod
  • Accessory Tray
  • 2 each 22 lb Counterweights
  • NexStar+ Hand Control
  • Shaft For Counterweights
  • 8 mm Hex (Allen) Wrench, Inside Rear Carry Handle
  • 12 Volt DC Power Cable
  • Hand Control Holster
  • Instructions
  • Celestron 2-Year Warranty


Optical Design Rowe-Ackermann Schmidt Astrograph
Aperture 279 mm (11")
Focal Length 620 mm (24.4")
Focal Ratio f/2.2
Central obstruction diameter 114 mm (4.48") (41% of aperture diameter)
Light Gathering Power (Compared to human eye) 1588x
Resolution (Rayleigh) 0.49 arcseconds
Resolution (Dawes) 0.41 arcseconds
Image Circle 43.3 mm (1.7") Ø , 4.0°
Useable field 52 mm (2.04") Ø , 4.8° only minimal performance loss at edge of FOV
Wavelength range 400 - 700 nm
Spot size < 4.4 μm RMS across FOV
Optical Coatings StarBright XLT
Off-axis Illumination 83% at 21 mm (.82") off-axis
Optical Window 68 mm (2.67") Ø
Back focus with included camera adapter 75 mm (2.16")
Back focus from top of threaded collar 72.8 mm (2.86")
Optical Tube Aluminum
Optical Tube Length 838.2 mm (33")
Optical Tube Diameter 330.2 mm (13")
Focuser Ultra-Stable Focus System
Finderscope Not included
Optical Tube Weight 43 lb (19.5 kg)
Other Features Ventilation fan, dual dovetail mounting bars
Included items 42 mm (1.65") T-thread camera adapter | 48 mm (1.89") camera adapter | Dust cover | Fan battery pack
Dovetail CGE Dovetail Bar
Mount Type CGX-L Computerized Equatorial
Instrument load capacity 75 lb (34 kg)
Height adjustment range (includes mount and tripod) 908.05 mm - 1339.85 mm (35.75" - 52.75")
Tripod Leg Diameter 69.85 mm (2.75") Steel tripod
Latitude adjustment range 3° - 65°
Mount Head Weight 52.6 lb (23.8 kg)
Accessory Tray Yes
Tripod Weight 46.2 lb (21 kg)
Weight of Counterweights 2 x 22 lb
Slew Speeds 9 slew speeds - max speed 3°/second
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes EQ North & EQ South
Dovetail Compatibility Dual saddle plates (CG-5 and CGE saddle)
Number of Auxiliary ports 4 Aux ports (Hand Control can use either Aux port)
Autoguide port Yes, 2 Ports
USB Port Yes, input for Mount and Hand Control
Power Requirements 12V DC, 3 amps
Motor Drive DC servo motors
Alignment Procedures 2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align
Periodic Error Correction Yes
Computer Hand Control 2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 port for PC connection
NexStar+ Database 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Software CPWI Telescope Control Software, Celestron Starry Night Special Edition Software, SkyPortal App
Total Kit Weight 185.8 lb (84.2 kg)
Included: CGX-L Equatorial Head | CGX-L Tripod | Accessory Tray | 2 x 22 lb counterweight | NexStar+ Hand Control | DC Power Cable (item# 18769) | Counterweight Shaft | Hand Control Holster | 8mm Allen wrench (contained in rear carry handle)