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Meade Instruments
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====ACF telescopes==== ACF (''Advanced Coma-Free'') is an altered version of the Meade's previous schmidt-cassegrain telescopes that replaces the traditional spherical schmidt-cassegrain [[secondary mirror]] with a hyperbolic secondary mirror. In the new design the [[Catadioptric system#Full aperture correctors|full aperture corrector]] is slightly altered in shape and combined with a spherical [[primary mirror]].<ref>{{cite book|url=https://books.google.com/books?id=kszsAxOHym0C&q=meade+advanced+coma-free+primary+spherical&pg=PA65 |title=Rod Mollise, ''Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain'', page 65 |isbn=9780387097725 |access-date=November 20, 2011|last1=Mollise |first1=Rod |date=February 28, 2009 |publisher=Springer }}</ref> Meade's literature describes their ACF as a variation on the [[Ritchey-Chrétien telescope]], although it does not use the two hyperbolic mirror combination in that design (being more of an ''aplantic'' design).<ref>{{cite book|url=https://books.google.com/books?id=kszsAxOHym0C&q=meade+advanced+coma-free+primary+spherical&pg=PA65 |title=Rod Mollise, ''Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain'', page 59 |isbn=9780387097725 |access-date=November 20, 2011|last1=Mollise |first1=Rod |date=February 28, 2009 |publisher=Springer }}</ref> ;Models * [[Meade LX90|LX90-ACF]], 8" to 12"<ref>{{cite web|url=http://www.meade.com/product_pages/lx90_series/lx90.php |title=LX90 Series |publisher=Meade.com |access-date=November 20, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20111012173948/http://www.meade.com/product_pages/lx90_series/lx90.php |archive-date=October 12, 2011 }}</ref> * [[Meade LX200|LX200-ACF]], a series of LX200 with ACF Optics 8" to 16"<ref>{{cite web|url=http://www.meade.com/product_pages/lx200_series/lx200.php |title=LX200 ACF Series |publisher=Meade.com |access-date=November 20, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20111012180014/http://www.meade.com/product_pages/lx200_series/lx200.php |archive-date=October 12, 2011 }}</ref> *LX400-ACF, 16 to 20" f/8, w/ robotic equatorial mount<ref>[http://www.durangoskies.com/lx400acf-wuhtc-mount-wtripod-p-2084.html Durango Skies – LX400-ACF 20" (f/8) w/UHTC on MAX Mount w/Tripod ] {{webarchive |url=https://web.archive.org/web/20110429061422/http://www.durangoskies.com/lx400acf-wuhtc-mount-wtripod-p-2084.html |date=April 29, 2011 }}</ref> *LX800<ref>{{cite web |url=http://www.meade.com/lx800/ |title=LX800 Series – Meade Instruments – Telescopes, Solar Telescopes, Accessories, Telescopes by Meade |publisher=Meade.com |access-date=November 20, 2011 |url-status=dead |archive-url=https://archive.today/20120906101252/http://www.meade.com/lx800/ |archive-date=September 6, 2012 |df=mdy-all }}</ref>
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