Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Refractors

A forum for discussing refractor telescopes.

Tariff Discussions

Posted by Jaimo!

Please log in to post a topic

Topic	Stats	Last Post Info
Pinned Double-Pass Ronchi Testing (a.k.a. DPAC) - Repository of tests performed on Refractors Started by nicknacknock , 16 Mar 2023	0 replies 53,347 views	$Double-Pass Ronchi Testing (a.k.a. DPAC) - Repository of tests performed on Refractors - last post by nicknacknock$ nicknacknock 16 Mar 2023
Pinned Links of interest and the "Best of Refractors" Started by Jason B , 20 Sep 2010	4 replies 113,032 views	$Links of interest and the "Best of Refractors" - last post by Jason B$ Jason B 20 Sep 2010
Pinned Focus on Refractors (repository of in-focus info) Started by Ron B[ee] , 30 Nov 2005	9 replies 88,284 views	$Focus on Refractors (repository of in-focus info) - last post by zrlevin$ zrlevin 24 Dec 2009
Proper placement of dew heater ? Started by Skyfisher , Today, 08:56 AM	0 replies 10 views	Skyfisher Today, 08:56 AM
Curious about slower refractors Started by balcon3 , Today, 05:10 AM	3 replies 221 views	$Curious about slower refractors - last post by balcon3$ balcon3 Today, 08:48 AM
Anatomy of a Refractor Focuser Started by Polyphemos , 10 Apr 2025 1 2	42 replies 1,280 views	$Anatomy of a Refractor Focuser - last post by RamStrocsop$ RamStrocsop Today, 08:34 AM
WO Ultra-Cat 108 WIFD (108mm, f/4.8) Started by Nikguy , 30 Nov 2024 1 2 3 4	Hot 75 replies 8,155 views	aabusara Today, 07:29 AM
Astro-Physics Stowaway 92mm - 6th Production Run Started by Spikey131 , 21 Nov 2024 1 2 3 9 →	Hot 215 replies 19,703 views	Spikey131 Today, 06:36 AM
Astro-Physics Starfire 130 EDT Started by jcharron , 13 Jun 2025 1 2 3	Hot 62 replies 1,968 views	Erik Bakker Today, 06:04 AM
Sharpstar 61 EDPH III vs Askar SQA55 Started by Oldkygolfpro , Yesterday, 10:12 AM	4 replies 201 views	Oldkygolfpro Today, 05:41 AM
What is Goldilock for a Refractor for looking at Jupiter? Started by saemark30 , 23 Apr 2025 1 2 3 12 →	Hot 281 replies 15,896 views	$What is Goldilock for a Refractor for looking at Jupiter? - last post by leviathan$ leviathan Today, 03:02 AM
Dual ED vs single SD? Started by Craig Smith , 11 Jun 2025 1 2	30 replies 1,164 views	Yingtianzzz Today, 02:55 AM
Are Petzval refractors prone to collimation issues? Started by atan , 11 Jun 2025 1 2	44 replies 1,387 views	$Are Petzval refractors prone to collimation issues? - last post by rainycityastro$ rainycityastro Today, 01:43 AM
Is a Quadruplet a triplet or doublet with flattener or something else? Started by koomber1664 , 15 Jun 2025	12 replies 471 views	luxo II Today, 01:11 AM
William APO 181/998 Started by Wibo , Yesterday, 02:15 PM	6 replies 323 views	RichA Yesterday, 11:44 PM
Vixen SDP65SS Quad Started by waso29 , Yesterday, 10:39 PM	1 reply 127 views	andysea Yesterday, 10:49 PM
Found a neglected Ranger Started by MortonH , 15 Jun 2025	10 replies 502 views	MortonH Yesterday, 10:12 PM
AT EDQ 86 and Luna Started by kmparsons , 09 Jun 2025	18 replies 659 views	Reptilicus Yesterday, 08:40 PM
TEC-itis! Started by Scott in NC , 04 Jul 2019 1 2 3 21 →	Hot 507 replies 72,986 views	swhf736 Yesterday, 07:56 PM
Show us your Redcat 51 Photos! Started by JustAKidWithATelescope , Yesterday, 07:54 PM	0 replies 107 views	JustAKidWithATelescope Yesterday, 07:54 PM
The Joy of a Small Refractor Started by MarkMittlesteadt , 21 Nov 2022 1 2 3 55 →	Hot 1,360 replies 159,860 views	$The Joy of a Small Refractor - last post by John R.$ John R. Yesterday, 07:33 PM
Travel setup for my 92mm stowaway Started by pisces4 , 18 May 2025	21 replies 1,151 views	k5apl Yesterday, 06:01 PM
102mm f/11 Refractor Started by clusterbuster , 14 Feb 2020 1 2 3 25 →	Hot 609 replies 79,968 views	$102mm f/11 Refractor - last post by daquad$ daquad Yesterday, 11:08 AM
A $45 50mm F/5 RFT Started by Jon Isaacs , 16 Jan 2021 1 2 3 39 →	Hot 951 replies 99,677 views	Dr. Megabyte Yesterday, 10:24 AM
Takitis! Started by NHRob , 25 Jun 2014 1 2 3 528 →	Hot 13,196 replies 1,570,472 views	Scott99 Yesterday, 10:22 AM
Justing the Lens Cell of a TS 152 f/5.9 Started by quilty , 30 Sep 2024 1 2	35 replies 1,360 views	quilty Yesterday, 08:03 AM
Tele Vue Genesis out of focus ovals? Started by rexowner , 15 Jun 2025	12 replies 308 views	Jon Isaacs Yesterday, 06:19 AM
What Galileo had to put up with. Sort of Started by RichA , 15 Jun 2025	6 replies 381 views	Wildetelescope Yesterday, 05:20 AM
Stellarvue SVX130T/140T (R) Owners Thread Started by Elusivephotons , 16 Sep 2023 1 2 3 9 →	Hot 205 replies 17,980 views	wheatgeneration 15 Jun 2025
Askar V 60mm with reducer will not focus with ZWO ASI2000MM Pro Started by Loden , 04 Dec 2023 Equipment, Refractor	6 replies 931 views	Astro-Remete 15 Jun 2025
Why doesn’t someone make this, or did they? Started by Terra Nova , 03 May 2025 1 2 3 4	Hot 78 replies 4,289 views	N-1 15 Jun 2025
Weird artifacts with FRA600 & L/G filters (internal reflection ?) Started by Robert13 , 31 Oct 2024	4 replies 367 views	Robert13 15 Jun 2025
Converted my Orion ST105 to a ST120 Started by Bill Fischer , 28 Mar 2022 1 2	45 replies 2,114 views	Procyon 15 Jun 2025
Askar 160 announced Started by ris242 , 09 Jan 2025 1 2	48 replies 5,344 views	Rodgerraubach 15 Jun 2025
Getting oval stars in corners after reassembling apo with reducer Started by Starspawn , 14 Jun 2025	6 replies 255 views	Tapio 15 Jun 2025
Celestron Travelscope users, unite ;-) Started by viewer , 12 Dec 2019 1 2 3	Hot 62 replies 5,985 views	maniack 15 Jun 2025
ST120 Rescue Mission Started by maniack , 06 Jun 2025	4 replies 435 views	maniack 15 Jun 2025
AP155CS Announced Started by LLEEGE , 05 Apr 2025 1 2 3 12 →	Hot 285 replies 22,204 views	Jeff Messinger 14 Jun 2025
History of the ST80 and similar fast achromats Started by balcon3 , 02 Jun 2025 1 2 3	Hot 69 replies 2,269 views	Shorty Barlow 14 Jun 2025
Svbony SV503 ED 102/714 Started by Skywatcher Simon , 20 Aug 2021 Equipment, Optics, Refractor 1 2 3	Hot 65 replies 11,338 views	Princess Leah 14 Jun 2025
Takahashi TSA 120 Binoviewers Friendly scope? Started by topmix , 03 Jun 2025	14 replies 789 views	topmix 14 Jun 2025
Big Red the Istar Started by Kevin Barker , 18 May 2025 1 2	30 replies 1,314 views	zjc26138 14 Jun 2025
My TOA150 and extras… Started by alejandrocarelli , 25 Dec 2023 1 2 3 16 →	Hot 381 replies 32,338 views	alejandrocarelli 14 Jun 2025
Are you a Vixen Fluorite/ED fan? Started by rolo , 25 Mar 2018 refractor 1 2 3 19 →	Hot 472 replies 73,601 views	osbourne one-nil 14 Jun 2025
Upcoming AP & TEC 110mm refractors - your opinions? Started by rexowner , 02 Jun 2025 1 2	34 replies 2,305 views	$Upcoming AP & TEC 110mm refractors - your opinions? - last post by andysea$ andysea 14 Jun 2025
Cleaning the rear side of Refractor objectives Started by Destrehan Dave , 12 Jun 2025	16 replies 482 views	$Cleaning the rear side of Refractor objectives - last post by PKDfan$ PKDfan 14 Jun 2025
Astro-Physics 110mm f6 StarFire GTX (110GTX) Started by Polyphemos , 04 Jan 2023 1 2 3 51 →	Hot 1,259 replies 145,554 views	OAJoe 13 Jun 2025
Tak TSA-120 or AT 115EDT Started by Bill Barlow , 18 May 2025 1 2 3 4	Hot 92 replies 4,055 views	Lookitup 13 Jun 2025
SvBony Sv503 ED102mm F/7 Telescope Review Started by Dudleydogg , 02 Mar 2022 Astrophotography, Beginner, DSO and 4 more... 1 2	37 replies 21,625 views	Skywatchr 13 Jun 2025
AT 115 EDT vs WO FLT91 Started by patroy , 12 Jun 2025 Astro Tech, Refractor, Equipment	5 replies 341 views	cbowlsby 13 Jun 2025