Celestron S 279/620 RASA 1100 V2 CGX-L GoTo Telescope Astrograph

This advanced astrograph streamlines the process of capturing stunning images with modern DSLR or astronomical CCD cameras. Featuring a cutting-edge optical design with a four-lens corrector incorporating rare earth glass, it effectively eliminates chromatic aberrations, coma, and field curvature. The result is unparalleled optical quality and spot size across the entire image field, with minimal vignetting.

Key features include:

• Super-fast 11" f2.2 optics: Expertly designed to sharply image APS format and optimized for sensor sizes up to a 70mm field diagonal.
• Extremely short exposure times: The RASA Astrograph acquires images twenty times faster than at f10, eliminating the need for tracking control.
• Huge field of view: With a 620mm focal length, wide-angle shots become effortless, providing comprehensive sky coverage.
• Excellent focusing mechanism: Equipped with new bronze bearings to reduce image shift and a 10:1 FeatherTouch micro-focuser for precise focusing.
• Innovative features: Includes a quieter 12V MagLev fan for cooling, various adapters for popular camera brands, and a back focus for optimal camera positioning.

Named after optical instrument designers Dave Rowe and Mark Ackermann, the RASA astrograph combines their expertise and experience. The new version V2 is equipped with the Ultra Stable Focus System (USFS), providing precise focusing via a linear ball bearing system to eliminate image shifting and tilting.

The RASA 1100 is suitable for a wide range of cameras, offering an image circle of 43mm, ensuring pin-sharp stars even on large sensors. Its large illuminated image circle and short focal length make it perfect for capturing large areas of the night sky and extended astronomical objects.

Paired with the CGX-L mount, this advanced mount offers increased payload carrying capacity and outstanding weight-load ratio. With features like 144mm worm gears and a 270mm long dovetail clamp, the CGX-L ensures smoother operation, even with heavier telescopes.

Advantages of the CGX-L include:

Increased payload carrying capacity

Additional AUX sockets and auto-guider connection for better cable management

Steel tripod with 70mm width legs for stability

Counterweight rod with 31.5mm diameter for heavy loads

The package includes:

• 11-inch RASA V2
• CGX-L mount
• Tripod with shelf
• 2 x 10kg counterweights
• NexStar+ hand controller
• DC power cable for vehicle power socket
• 8mm hex key
• 42mm T-Adapter
• 48mm camera adapter
• Dust cap

SPECIFICATIONS

Optics

Type: Reflector

Build Type: Astrograph

Aperture (mm): 279

Focal Length (mm): 620

Aperture Ratio (f/): 2.22

Resolving Capacity: 0.41

Limit Value (mag): 14

Light Gathering Capacity: 1588

Coating: Starbright XLT

Tube Material: Aluminium

Tube Length (mm): 840

Tube Weight (kg): 16

Tube Construction: Full Tube

Ventilation for Central Mirror: Yes

Focuser

Build Type: Primary Mirror Focusing

Backfocus (mm): 72.8 & 55

Connecting Threaded Socket (Camera-Side): M48

Connection (to Eyepiece): Without

Gear Reduction: Without

Mount

Weight (kg): 21.3

GoTo Control: Yes

Build Type: CGX-L

Encoder: Yes

Mounting Type: Equatorial

Load Capacity (kg): 34

Polar Elevation Setting (°): 3 - 65

Power Supply: 12V

Diameter of Counterweight Bar (mm): 31.5

Mounting Saddle: Losmandy & Vixen

Drive Type: Worm Wheel

Optional GoTo Control: GPS

Software: NexStar

Interfaces: 2x Aux, USB 2.0, Autoguider

Database: 40,000

Tracking Speeds: Sidereal, Solar, and Lunar

GoTo Language: German, English, French, Spanish, Italian

Remote: Celestron PWI

Tripod

Type: Tripod

Material: Steel

Weight (kg): 21

Accessory Plate: Yes

Max. Tripod Height (cm): 134

Min. Tripod Height (cm): 91

Tripod Leg Diameter (mm): 70

Included Accessories

Prism Rail: Losmandy-Style

Counterweights (kg): 2x 10

Finder Scope: Without

General

Series: CGX-L

Total Weight (kg): 78.3

Area of Application:

Astrophotography: Yes (Very Good)

Moon & Planets: Yes

Nature Observation: No

Nebulae & Galaxies: Yes

Sun: No

Recommended for:

Beginners: No

Advanced: Yes

Observatories: Yes