Celestron CGX 11" Rowe-Ackermann Schmidt Astrograph V2

Capture breathtaking deep-sky images with the Celestron RASA 11 V2, a high-speed astrograph designed to make wide-field astrophotography faster and more accessible. Its f/2.2 optical system allows significantly shorter exposure times than traditional f/10 astroimaging systems, helping you collect impressive images without requiring your equatorial mount to track accurately for extended periods. The RASA 11 V2 combines a 620mm focal length with a fast f/2.2 optical design, giving astrophotographers a powerful combination of speed and wide-field coverage. Shorter sub-exposures can reduce the demands placed on your equatorial mount, and in many situations, autoguiding may not be required.

Built on Celestron's long history of Schmidt Camera technology, the RASA 11 V2 carries forward an optical concept that was already helping astrophotographers achieve shorter exposure times decades ago. Modern digital imaging sensors take that capability even further, making the RASA 11 V2 particularly suited to today's DSLR and astronomical CCD cameras. Its 43.3mm optimized image circle is designed to support large imaging sensors while maintaining excellent optical performance. The system can deliver strong performance with sensors featuring diagonals of up to 52mm, providing the coverage needed for large-format imaging. With its combination of high-speed f/2.2 optics, 620mm focal length and large optimized image circle, the RASA 11 V2 is built for more than conventional deep-sky photography. Its wide-field capability makes it suitable for creating large mosaics of the night sky, astronomical surveys and comet hunting, giving astrophotographers a versatile platform for exploring and capturing expansive celestial subjects.

Features

• Fast, wide-field 11” f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature
• Large 43.3mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52mm for larger format sensors
• New Ultra-Stable Focus System (USFS) minimizes 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