![]() Meade's Advanced Coma-Free system also reduces the astigmatism and eliminates diffraction spikes found in classical RC's. ![]() f/10 Advanced Coma-Free Optics: Building from a classic RC design, Meade has created a design with the same coma-free pinpoint star images and flatter field that discerning astrophotographers and most professional observatories have come to expect from classic Ritchey Chretien optics.Meade 10" f/10 LX200-ACF Advanced Coma-Free Telescope Features The design even eliminates diffraction spikes and improves astigmatism, both of which are inherent in the traditional RC design. This ACF design produces a coma-free, flat field of view that rivals traditional RC telescopes at a fraction of the cost. Fortunately, Meade engineers developed an Advanced Coma Free design by combining a hyperbolic secondary mirror with a corrector-lens-and-spherical-primary-mirror combination that performs as one hyperbolic element. Because the mirrors in these telescopes have always been very expensive to make, few amateur astronomers could enjoy them. RC telescopes (from a variety of manufacturers) are found in most of the world's top observatories and NASA's Hubble Space Telescope. This puts the possibility of a Coma free astronomy experience within the reach of amateur astronomers once more and enables you to enjoy flat and wide fields of view without paying a fortune.Ī traditional RC design is a type of reflector that delivers a coma-free, flat field of view via hyperbolic primary and secondary mirrors. ![]() It is a top-notch Schmidt Cassegrain Telescope that performs at the same level as a Ritchey Chretien at a fraction of the cost. The ACF-LC200 from Meade is an excellent choice for the astronomer looking for a new telescope. ![]()
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