Celestron 36 cm Rowe-Ackermann Schmidt Astrograph OTA - 91077

Celestron 36 cm RASA Astrograph OTA   Optimally suited for scientific applications such as space surveillance and Space Situational Awareness (SSA), as well as for advanced wide field astrophotography, this Rowe-Ackermann Schnmidt Astrograph is also practical from a cost perspective. This optical system provides fantastic value in terms of speed, aperture, field of view, and overall optical performance. The RASA design features a convenient external location with a flat focal plane for prime-focus image capture, allowing small spot sizes to the outskirts of a wide field resulting in images void of optical blemishes such as field curvature, off-axis coma, and astigmatism. The 36 cm aperture version is the largest RASA Celestron manufactures. It is both the biggest and fastest (f/2.2) optical instrument of its kind available “off-the-shelf.” Unlike most telescopes, which only focus visible light (400-700 nm), the RASA 36 cm focuses an extended spectral range (400-900 nm), allowing a brig