Meade ACF-SC telescopes:
Almost every large telescope worldwide is a Ritchey-Chrétien, including NASA's Hubble space telescope. The technology used by the pros can now belong to you too. Meade's new Advanced Coma-Free System - powerful and high-precision - is within the reach of all ambitious amateur astronomers, astrophotographers and CCD photographers! It provides perfectly sharp star images, at the highest professional observatory level, over the entire field of view. The secret of coma-free system is - as the name says - the complete absence of coma, an optical aberration in which starlight is distorted and pulled into comet-like tails outside the central part of the image. Whether for observing or photography, the ACF Cassegrain optics from Meade is way ahead of conventional mass produced telescopes. It offers fantastic image quality, previously only available from Ritchey Chrétien telescopes and other exotic systems costing several times as much as the Meade system.
