Celestron - 11" Rowe-Ackermann Schmidt Astrograph Optical Tube (OTA) - 91075

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  • Celestron RASA 11-inch f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature

  • 43.3 mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52 mm for larger format sensors.

  • Custom engineered linear brass focuser bearing reduces image shift, while dual-speed 10:1 FeatherTouch Micro Focus Knob provides the most precise focusing

  • Quiet, high-output 12V MagLev fan reduces cooldown time and blocks dust

  • Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras

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SKU: CEL-91075