Celestron CGX 800 RASA Lightweight Telescope with Fast f2.0 SystemCapture spectacular wide field deep sky images in seconds with Celestron CGX 800 RASA Telescope. This incredibly fast f 2. 0 system is the perfect companion to todays color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, its easy to transport your 8