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Mineral Moon by Thomas Hanrath

Mechanisms for achieving precise focus in telescopes.

Showing 1-50 of 173

	Replies	Views	Created
Skywatcher HAC125DX receives auto focus upgrade from Starizona AstroSharp Ltd SharpCap Equipment Focuser +2 Paul Howat	0	34	11 hours ago
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Screwing or not screwing the coma corrector to the newton focuser that's the question Equipment Focuser Reflectors +1 Frédéric Ruciak Last post: John Tucker	12	228	Oct 12, 2025
Arduino stepper focuser ASCOM driver development help needed The ASCOM Initiative ASCOM Focuser DIY +1 Tony Gondola Last post: Tony Gondola	4	60	Sep 21, 2025
Focus cube running to zero with out of focus camera issue Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)Focuser Auto-Focusing Mossyback Last post: Mossyback	6	43	Sep 12, 2025
Focuser trouble when NINA starts Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)Focuser ValeryL Last post: ValeryL	6	115	Sep 3, 2025
Upgrading from Quattro 200CF to 300P: seeking owner experiences and advice Sky-Watcher Quattro 300P iOptron CEM70-NUC Sky-Watcher Quattro Coma Corrector +5 Ivan Last post: Ivan	24	573	Aug 28, 2025
Focuser and planetary camera recommendations for Skywatcher 150p Virtuoso GTI? Alt-Az Mount Focuser Planetary Camera +4 Szijártó Áron Last post: Szijártó Áron	1	20	Aug 26, 2025
Temperature compensation using weather data feed Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)Focuser Auto-Focusing Himanshu Pandey Last post: Himanshu Pandey	16	457	Jul 26, 2025
Motor used? ZWO EAF Focuser Tony Gondola Last post: Tony Gondola	9	168	Jul 18, 2025
Replacement focuser Equipment Focuser Reflectors Tony Gondola Last post: Tony Gondola	10	250	Jul 17, 2025
Replacement focuser TS-Optics PHOTON 150mm/6" f/4 Newtonian Focuser D. Jung Last post: Tobiasz	7	203	Jul 12, 2025
External focuser respecting the rear flange to sensor distance mentioned by Celestron ??? Celestron EdgeHD 8"Focuser Flattener Paulo de Almeida Last post: John Hayes	14	251	Jun 11, 2025
ASCOM Driver Error Message--focuser/rotator fail to connect The ASCOM Initiative ASCOM Equipment Focuser +1 Jerry Gerber Last post: Jeffery Richards	16	263	Jun 9, 2025
3" Focuser Support for Orion 8" Reflector Equipment Focuser Reflectors texasastrophotography Last post: Stephen Jones	14	242	Jun 3, 2025
Focus ring distance indicators meaningless? SVBony SV555 Focuser Beginner Robert Powell Last post: craigs0522	9	197	May 30, 2025
EAF 5V Discontinued? ZWO EAF Equipment Focuser Scott Chambers Last post: Blue	14	477	May 20, 2025
New Telescope of Focuser? Sky-Watcher Evostar 72ED Sky-Watcher EQ6-R Pro Equipment +1 Craig Holbrook Last post: Deepan Vishal	8	365	May 15, 2025
Edge HD 8 Imaging Train Plan (ambitious) Celestron EdgeHD 8"Equipment Focuser Eric Emmons Last post: Tony Gondola	12	537	May 2, 2025
Zwo EAF not getting good focus and question? ZWO EAF Focuser Auto-Focusing +1 Dan Kearl Last post: Cheryl Wilcox	18	742	Apr 30, 2025
PlayerOne 7x36mm EFW + Pegasus Indigo OAG Player One Phoenix Wheel 7x36mm Equipment Focuser Dunk	0	47	Apr 12, 2025
Celestron Edge 8 HD focuser upgrade options? Celestron EdgeHD 8"Focuser ScotiaAstro Last post: AstroDarks	15	301	Apr 9, 2025
Stellavita + PLL Esatto Equipment Focuser Dunk	0	35	Apr 6, 2025
Weight of Askar 130 PHQ Focuser Askar 130PHQ Focuser Refractors Jerry Gerber Last post: Dark Matters Astrophotography	12	216	Mar 28, 2025
What to do with the focuser temperature probe? MoonLite NiteCrawler 3.5"Takahashi TOA-130 Focuser John Stone Last post: Bob Lockwood	20	456	Mar 26, 2025
ZWO EAF doesn't return to correct position ZWO EAF Focuser Troubleshooting +1 Keith Geissler Last post: Keith Geissler	9	169	Mar 25, 2025
Best value focuser/rotator for TOA-130NS? Takahashi TOA-130 Refractors Focuser +1 John Stone Last post: Dark Matters Astrophotography	18	406	Feb 23, 2025
Problem with skywatcher 150/750 and cyck focuser. I can´t get focus Sky-Watcher Black Diamond 150/750 Optolong L-Pro Focuser +1 Jandro.rm Last post: Alex Nicholas	7	262	Feb 17, 2025
Feathertouch 3.5" focuser for Askar 130PHQ Askar 130PHQ Focuser Troubleshooting Jerry Gerber Last post: Jeffery Richards	7	322	Jan 24, 2025
Nightmare on Astro Street Askar 130PHQ Focuser Jerry Gerber Last post: Jerry Gerber	43	1.7k	Jan 13, 2025
Askar 130 PHQ field Flattener Askar 130PHQ Flattener Focuser Jerry Gerber Last post: Ashraf AbuSara	9	227	Jan 13, 2025
Askar 130 PHQ Tube Size (where focuser connects) Askar 130PHQ Focuser Jerry Gerber	0	83	Jan 12, 2025
Question about Esatto 3" PrimaLuceLab ESATTO 3" robotic focuser PrimaLuceLab SESTO SENSO 2 Focuser Jerry Gerber Last post: Jerry Gerber	5	130	Jan 9, 2025
Focuser for Askar 130PHQ Refractor Askar 130PHQ Equipment Focuser +1 Jerry Gerber Last post: Tony Gondola	48	944	Jan 8, 2025
Takahashi FS60cp electronic focuser Equipment Focuser vikas chander Last post: Wolfgang Reissenberger	6	211	Jan 1, 2025
TOA-130 temperature / focus management strategies? Takahashi TOA-130 Focuser Auto-Focusing +1 Ashraf AbuSara Last post: Mark McComiskey	17	465	Dec 29, 2024
ESATTO 4 STEP COUNTS ISSUE PrimaLuceLab ESATTO 4" robotic focuser Focuser Troubleshooting Riccardo Civati Last post: Icarulus	7	333	Dec 24, 2024
ZWO EAF stops ZWO EAF Focuser Troubleshooting N Foldager Last post: patrice_so	13	444	Dec 21, 2024
Advice for troubleshooting edge 8 with hyperstar v4 ZWO ASI183MC Pro Equipment Focuser +2 James	0	89	Nov 22, 2024
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Vixen dovetails stacked - yes or no? Takahashi FSQ-106EDX4 Equipment Focuser +1 Jure Menart Last post: Jure Menart	21	353	Oct 30, 2024
William Optics WIFD Equipment Refractors Focuser Brian Last post: Fabiano R. Maioli	9	409	Oct 25, 2024
Edge HD 9.25 and Esatto 2" focuser Celestron EdgeHD 9.25"Equipment Focuser Jerry Gerber Last post: Kostas Papageorgiou	11	359	Oct 19, 2024
Question For RC6 Owners iOptron Photron 6 inch Ritchey-Chretien (RC6)Focuser Troubleshooting Kerry Werry Last post: wizzlebippi	4	179	Oct 9, 2024
Takahashi's bad focusers Takahashi Epsilon-130D Takahashi FSQ-85EDX Focuser +2 Mauricio Christiano de Souza Last post: Mauricio Christiano de Souza	34	1.3k	Oct 7, 2024
Tilt in focuser Sky-Watcher Esprit 120ED Focuser Tilt fmazzanti Last post: Siegfried Noët	10	277	Sep 29, 2024
Redcat 71 WIFD Image Train Length William Optics Redcat 71 WIFD William Optics Redcat 71 Focuser +1 Andyb90 Last post: AstroMinden	4	249	Sep 28, 2024
Problem with M54 extender and coma corrector. Equipment Focuser Coma Raúl M. Last post: Raúl M.	2	138	Sep 16, 2024
EdgeHD 9.25 w/ 0.7x Reducer and 2" Esatto Questions Celestron EdgeHD 9.25"Focuser Reducer Joshua Carter Last post: Jerry Gerber	33	996	Sep 14, 2024

Showing 1-50 of 173