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M 13 by Peter Nielsen

Equipment item: filter.

Showing 1-22 of 22

	Replies	Views	Created
Canon 200mm f/2.8 with Optolong dual band filters causing strong image gradients Optolong L-Ultimate filter Optolong L-eXtreme Optolong L-Ultimate Gradient Removal Carlos Rincón Last post: Carlos Rincón	11	131	Sep 21, 2025
L-Ultimate Star artifacts Optolong L-Ultimate 2"Optolong L-Ultimate ZWO ASI2600MC Pro +2 Luis Nuño Last post: Luis Nuño	13	750	Feb 5, 2025
Back focus issue? Stellarvue SVX130T Optolong L-Ultimate ZWO ASI2600MC Pro +2 NeilM Last post: NeilM	7	256	Jan 19, 2025
Guiding with Optolong L-Ultimate? ZWO ASI2600MC DUO Optolong L-Ultimate ZWO ASI2600MC Pro +2 agard Last post: FrancoisGAP	22	695	Jan 16, 2025
Need Advice Pleiades Astrophoto PixInsight Optolong L-Ultimate Filters +1 Marc Whitsett Last post: Jerry Gerber	3	179	Nov 5, 2024
Weird anomaly in my California Nebula pic Optolong L-Ultimate Acquisition Deep Sky +2 Rob Calfee Last post: Marc-Antonio Fischer	7	382	Oct 11, 2024
L-Ultimate Under Full Moon Optolong L-Ultimate Duo-Narrowband H-alpha +1 James Last post: James	8	489	Sep 15, 2024
What's Going On with these Flat Frames Optolong L-Ultimate Optolong UV/IR cut Acquisition +2 Jerry Gerber Last post: Willem Jan Drijfhout	9	229	Aug 31, 2024
OSC imaging with L-Ultimate, L-eNHanced Optolong L-Ultimate Acquisition Processing +1 Alonso Uribe Last post: Alonso Uribe	28	1.2k	Aug 7, 2024
Best filters with the 2600MC Pro ZWO ASI2600MC Pro Optolong L-Ultimate ZWO ASI2600MC Pro Filters +1 Michael McNerney Last post: Dale Penkala	3	76	Jul 24, 2024
Recommend Antlia Quad Band Anti-Light Pollution Filter for a Bortle 8/9 Backyard? Antlia Quad Band Anti-Light Pollution Filter 2" Mounted William Optics Redcat 71 Optolong L-Ultimate +2 Vinny Vent Last post: DavesView	26	900	Apr 11, 2024
[RCC] 3x2 panels mosaic of the Rosette Nebula Pleiades Astrophoto PixInsight Optolong L-Ultimate Mosaic +2 patrice_so Last post: patrice_so	7	378	Mar 18, 2024
Rolling Shutter with ZWO ASI533MC Pro? ZWO ASI533MC Pro Optolong L-Ultimate Artifacts +1 Ryan Faulkner Last post: Remco	3	148	Mar 10, 2024
Solar Imaging for Cheapos Optolong L-Ultimate Equipment Filters +2 Anderl Last post: Ed Dixon	5	255	Nov 21, 2023
L-Ultimate on dark sky? Optolong L-Ultimate 2"Optolong L-Ultimate Optolong UV/IR cut +2 Cristian Arhip Last post: Gilmour Dickson	11	567	Nov 14, 2023
Nebula Color with OSC (ZWO ASI2600MC) ZWO ASI2600MC Pro Optolong L-Ultimate Optolong L-eNhance +2 Jerry Gerber Last post: Janez Skubic	14	1.2k	Oct 20, 2023
Calibration issue with QHY183C/QHY183M QHYCCD QHY183C Optolong L-Ultimate Calibration +2 Werner Stumpferl Last post: Lutz Kirchner	13	630	Aug 28, 2023
Gabriella Mistral Bubble??? Pleiades Astrophoto PixInsight Optolong L-Ultimate Request for feedback +2 Nick Axaris Last post: Nick Axaris	2	156	Jul 5, 2023
L-Ultimate Star halos Optolong L-Ultimate 2"Optolong L-Ultimate Filters +1 Doversole83 Last post: andrea tasselli	12	1k	Jun 7, 2023
Removing dust from optical surfaces Optolong L-Ultimate Equipment Filters +1 Anderl Last post: Brian Puhl	3	221	Mar 23, 2023
Optolong L-Ultimate verses L-Extreme Optolong L-Ultimate Equipment Filters +1 Ed Litoborski	0	160	Oct 6, 2022
What do i need to use a L-Ultimate together with my Esprit 120 Sky-Watcher Esprit 120ED Optolong L-Ultimate Filters Anderl Last post: Brian Valente	5	357	Sep 30, 2022

Showing 1-22 of 22