Celestron CGX Equatorial 800 HD Telescopes Whitepaper EdgeHD Optics - Page 15

10. CONCLUSION The classic Schmidt-Cassegrain telescope introduced tens of thousands of observers and imagers to astronomy and nurtured their appreciation for the wonder of the night sky. Today, observers and imagers want a more capable telescope, a telescope that provides sharp close-ups as well as high-quality images all the way across a wide, flat field of view. But, consumers want this advanced optical technology at an affordable price. Celestron has designed the EdgeHD to meet customers' needs. The EdgeHD is not only coma-free, but it also provides a flat field so that stars are sharp to the very edge of the field of view. In this brief technical white paper, we have shown you the inner workings of our new design. We also demonstrated the care we exert as we build and test each EdgeHD telescope. We trust that we have proven that an EdgeHD is the right telescope for you. You may find the following resources to be useful in learning about optical design, fabrication, and testing: 11. REFERENCES DeVany, Arthur S., Master Optical Techniques. John Wiley and Sons, New York, 1981. Fischer, Robert E.; Biljana Tadic-Galeb; and Paul R. Yoder, Optical System Design. McGraw Hill, New York, 2008. Geary, Joseph M., Introduction to Lens Design. Willmann-Bell, Richmond, 2002. Malacara, Daniel, ed., Optical Shop Testing. John Wiley and Sons, New York, 1978. Rutten, Harrie, and Martin van Venrooij, Telescope Optics: A Comprehensive Manual for Amateur Astronomers. Willmann-Bell, Richmond, 1999. Smith, Gregory Hallock, Practical Computer-Aided Lens Design. Willmann-Bell, Richmond, 1998. Smith, Gregory Hallock; Roger Ceragioli; Richard Berry, Telescopes, Eyepieces, and Astrographs: Design, Analysis, and Performance of Modern Astronomical Optics. Willmann-Bell, Richmond, 2012. Wikipedia. Search references to specific topics. See: http://en.wikipedia.org/wiki/Optical_lens_design and many associated links. Wikipedia. Search references to T-mount. See: http://en.wikipedia.org/wiki/T-mount and associated camera system links. Wilson, R. N., Reflecting Telescope Optics I and II. Springer-Verlag, Berlin, 1996. ZEMAX® Optical Design Program, User's Guide. Radiant Zemax LLC, Tucson, 2012. The Celestron EdgeHD 15