Cats & Casses
A forum for discussing Cassegrain (Classic Cassegrain, Ritchey-Chrétien, Dall–Kirkham, etc) and Catadioptric telescopes (Schmidt and Maksutov Cassegrains, ACF, Edge HD, etc).
Celestron Nexstar 6SE & Evolution 6" dimensions?Started by Oscar Szentirmai , 15 Dec 2019  catadioptric
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CFF Classical cassegrains - Any star test available?Started by Vinny1980 , 07 Aug 2019 |
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Total Length of Celestron .7x Reducer EdgeHD 800Started by plane48 , 14 Nov 2019 |
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First time with autocollimator and 190 Mak-NewtStarted by mlrtime99 , 13 Nov 2019 |
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Apparent need for Hotech SCT collimator because celestron does not assemble their edges correctlyStarted by Benni123456 , 02 Jun 2019 |
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What Year Did C5+ Come With Starbright XLT Coatings?Started by RalphMeisterTigerMan , 05 Dec 2019 |
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Vignetting questionStarted by oldtimer , 11 Dec 2019 |
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Age of my C5Started by oldtimer , 11 Dec 2019 |
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USA C90 and focual reducersStarted by Jeff Lee , 09 Dec 2019 |
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Can CCDt67 provide a flat field over 8300 chip on RC8?Started by syxbach , 11 Dec 2019 collimation, cassegrain and 3 more...
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Did tariffs push price of 6" RC's/Classic Cas's up by $100?Started by RichA , 11 Dec 2019 |
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Rare SCTish on EbayStarted by tadam , 26 Nov 2019 |
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New Celestron C5+ Arrived Today (start of 2 weeks rain).Started by RalphMeisterTigerMan , 10 Dec 2019 |
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Celestron NexStar 4SE thru 8SE Cyber Monday dealStarted by CleanSkies , 02 Dec 2019 |
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EdgeHD OTA fit in CPC Fork?Started by Dave Bush , 11 Dec 2019 |
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GSO Classic Cass 8 inchStarted by highfnum , 08 Dec 2019 |
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Meade declares bankruptcyStarted by kohudson , 05 Dec 2019 |
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Meade 2045 with wobbly baseStarted by munirocks , 07 Dec 2019 |
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8 SE Eyepiece satisfactionStarted by fenry , 18 Nov 2019 |
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Anyone One Ever Compare the otipcs of a C5+ to a Japan Special Optics 127mm SCTStarted by RalphMeisterTigerMan , 02 Dec 2019 |
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NEW 14" RASA!Started by MarkNevilleUSQAstronomy , 01 Apr 2018 optics, observatory, imaging and 4 more...
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Ode to joy of the SCTStarted by gjanke , 26 Sep 2019 |
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Carbon fiber tubes - good idea?Started by hawkman , 19 Oct 2019 |
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Distance from reducer to sensorStarted by Jesus Munoz , 01 Dec 2019 |
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Advice Needed on High School Astronomy Club Observatory Scope: Meade LX200rStarted by sclausen , 04 Dec 2019 cassegrain, catadioptric and 1 more...
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Vixen VMC 260L dovetail?Started by Nippon , 08 May 2019 |
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SCT Dual Speed Crayford on a Mak 90?Started by SloMoe , 28 Nov 2019 |
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Meade's double speed internal crayford focuserStarted by Jesus Munoz , 22 Nov 2019 |
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Does anyone have a good B&L 4000Started by grif 678 , 21 Nov 2019 |
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CPC 1100 AZ Clutch Locked problemStarted by dagadget , 28 Nov 2019 |
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EDGE HD @ F7 Field Curvature in CCD InspectorStarted by Janco , 02 Dec 2019 |
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Is there a 5-6" Mak or SCT with push-to capabilities?Started by 15°North , 30 Nov 2019 |
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Celestron's 5" Mak - Should I?Started by Dave Bush , 02 Dec 2019 |
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Edge HD 8in for DSOStarted by Mmarett , 16 Nov 2019 astrophotography, cassegrain, ccd and 6 more...
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C-8Started by Nunyur , 02 Nov 2019 |
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Orion 180mm Maksutov-CassegrainStarted by Luckypaul777 , 28 Apr 2019 Maksutov
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New RASA 11 Arrived!Started by drprovi57 , 29 Nov 2019 |
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CELESTRON C5+ How long do the Starbright coatings last?Started by RalphMeisterTigerMan , 29 Nov 2019 |
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Vixen VC200L imaging gear helpStarted by MakNewtMan , 30 Nov 2019 |
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Can the rear mirror cell on a SCT be adjusted for alignment?Started by JimFR , 26 Nov 2019 collimation, SCT
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Collimation using a Double Star?Started by Michael2 , 28 Nov 2019 |
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NEWer 180mm Maks Orion & Skywatcher Rear Cell OpeningsStarted by spongebob@55 , 26 Sep 2019 |
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Re-figuring a cassegrain mirrorStarted by mtnskies , 26 Nov 2019 |
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Meade HD LX600 TripodStarted by Gregory2012 , 26 Nov 2019 |
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C5 spotter, 2" visual back.Aftermarket focuser.Started by Binojunky , 15 Nov 2019 |
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CPC800 owners with ZWO camera, need your advisesStarted by qaiden , 26 Nov 2019 |
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Best Planet and Lunar KillerStarted by Wil2010 , 23 Oct 2019 |
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Can't remove corrector plate - Celestron Nexstar GPS 11"Started by Greg Stein , 06 Nov 2019 Celestron, catadioptric and 3 more...
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GSO 6inch F12 Classical Cassegrain It’s A Winner!Started by Spacedude4040 , 16 Jan 2019 cassegrain, catadioptric and 1 more...
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Tak Mewlon 210 vs Vixen VMC260LStarted by Stargazer3236 , 09 Oct 2019 |
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