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Sadr Region and NGC6888 Crescent Nebula by Mike Smith

Imaging specific emission lines with narrow bandpass filters.

Showing 1-50 of 228

	Replies	Views	Created
When do you give up on Oiii or Sii in narrowband imaging? Acquisition Narrowband H-alpha +2 Tony GondolaFrequent contributor Last post: Jan Erik Vallestad	9	449	17 days ago
Narrowband Issues Filters Acquisition Auto-Focusing +2 Mossyback Last post: Mossyback	4	167	19 days ago
NB Filter Bandwidth Requirements for Galaxy Imaging - AND- Announcing the Galaxy Studio on AIC Acquisition Narrowband Deep Sky +1 John HayesFrequent contributor Last post: John Hayes	3	216	Jul 6, 2025
Osc narrowband flats at F10 suggestions Celestron C6 Acquisition Calibration +2 TiffsAndAstro Last post: TiffsAndAstro	10	214	Jun 26, 2025
[RCC] NGC688 area Pleiades Astrophoto PixInsight Narrowband Request for feedback +1 Dirk Bausch Last post: Georg N. Nyman	10	466	Jun 22, 2025
[RCC] NGC 7000 Pleiades Astrophoto PixInsight Processing SHO +2 CoyoteAstro	0	111	May 27, 2025
What to do when your very first astro-image shows up on the NASA website? NASA Chandra X-ray Observatory Sky-Watcher EQ6-R Pro Narrowband +1 John Stone Last post: John Stone	2	174	Apr 29, 2025
Incredible Narrowband Survey for Finding New Targets Acquisition Narrowband Deep Sky The0s Last post: andrea tasselli	17	1.2k	Apr 19, 2025
ASI 2600 MM - recommended gain and exposure time for NB ZWO ASI2600MM Pro Askar FRA400 Narrowband +1 Leonardo Landi Last post: astrojuanan	45	1.6k	Mar 27, 2025
Choosing SHO filters for RASA 8 Celestron RASA 8"Equipment Filters +2 Tommi Liinalampi Last post: Tommi Liinalampi	15	288	Mar 13, 2025
Choosing Objects to Photograph Acquisition Narrowband Deep Sky +1 Jerry GerberFrequent contributor Last post: Timothy Martin	31	1.2k	Mar 12, 2025
Going IMX455 on a TOA-130 at a B1 site, which filters? Takahashi TOA-130 Filters Acquisition +2 John Stone Last post: Kyle Goodwin	3	183	Mar 8, 2025
Struggling with very dim targets ZWO ASI183MM Pro Acquisition Narrowband +2 Craig Dixon Last post: kvastronomer	17	661	Feb 17, 2025
Problem with Narrowband Normalisation in 1.9.2 Pleiades Astrophoto PixInsight ZWO ASI533MC Pro Optolong L-eNhance +1 Craig Dixon Last post: Craig Dixon	9	1.2k	Feb 7, 2025
Looking for Advice on SII & OIII Filters - Halo Issues with Askar D2 Equipment Filters Narrowband +1 Menelaos Last post: David Néel	12	325	Jan 29, 2025
Stuck on Next Steps for My Astrophotography Setup – Need Input! Optolong L-eXtreme Equipment Narrowband +2 akshay87kumar Last post: Amit	22	836	Jan 26, 2025
[RCC] Rosette Nebula in SHO/Foraxx Pleiades Astrophoto PixInsight Processing Narrowband +1 Jan Ossowski Last post: Jan Ossowski	7	556	Jan 13, 2025
How to separate channels from the Antlia Quad Band in PI Antlia Quad Band Anti-Light Pollution Filter 2" Mounted Narrowband OIII +2 Keith Geissler Last post: Franklin Marek	8	401	Dec 31, 2024
What is the colour of OIII? Processing OIII Narrowband +1 Willem Jan Drijfhout Last post: Adam Drake	28	1.6k	Dec 28, 2024
PixInsight 1.9.0 MultiscaleGradientCorrection for narrowband missing SII and OIII data in MARS? Filters Processing Narrowband +1 Tom Zepf Last post: pfile	1	179	Dec 22, 2024
[RCC] IC1805 in SHO Narrowband Request for feedback Kartik Madhira Last post: Dean Linic	2	114	Nov 27, 2024
Narrowband Exposure Lengths vs. Swamping Read Noise ... help! CMOS Acquisition Narrowband +1 John Stone Last post: John Stone	20	1.1k	Nov 6, 2024
[RCC] Heart Nebula: Narrowband normalization ZWO ASI294MC Pro Processing HOO +2 akshay87kumar Last post: Tony Gondola	12	478	Oct 26, 2024
Beyond Dual Band Filters Acquisition Narrowband +1 Tony GondolaFrequent contributor Last post: Tony Gondola	8	495	Oct 14, 2024
New Script: PhotometricContinuumSubtraction -- Pixinsight Pleiades Astrophoto PixInsight Processing Narrowband +1 Charles HagenIOTD Staff Last post: Noah Tingey	48	5k	Oct 2, 2024
What should I do with my H-II data? Processing Narrowband One-Shot Color +1 Paul Lloyd Last post: Jeff Reitzel	14	523	Sep 21, 2024
A basic science question about emission nebulae --Pelican, North American etc. Narrowband Off-topic Emission Nebula Tim Hawkes Last post: Tim Hawkes	12	622	Sep 20, 2024
Ha 5nm vs 3nm and the missing NII signal. Any examples? Filters Acquisition Narrowband +2 Ashraf AbuSara Last post: Arun H	21	515	Sep 19, 2024
Can Someone Explain using Luminance Filter in High Bortle? William Optics Redcat 71 Processing Narrowband +2 Vinny Vent Last post: Brian Diaz	8	565	Sep 14, 2024
Data quality? Processing Stacking Narrowband +1 Sean Mc Last post: Tony Gondola	5	208	Sep 13, 2024
Narrowband color mapping Processing SHO Narrowband +2 Arun HFrequent contributor Last post: Arun H	19	669	Sep 10, 2024
Focus change using narrow-band filters Filters Acquisition Narrowband +1 Tony GondolaFrequent contributor Last post: Bill McLaughlin	11	452	Sep 7, 2024
processing twin setup data question Processing Narrowband H-alpha +1 James Last post: James	4	201	Aug 20, 2024
Bandpass shift overlooked on clip in when using lenses? Filters Acquisition Narrowband +1 AstRobert Last post: Tony Gondola	2	61	Aug 17, 2024
Gradient correction with narrowband Processing Gradient Removal Narrowband +1 Sam Badcock Last post: Sam Badcock	23	613	Aug 8, 2024
One filter per night or split them up? Acquisition Narrowband Deep Sky Sean Mc Last post: Alex Nicholas	16	620	Aug 7, 2024
Effects of smoke - not surprising but interesting Acquisition Narrowband H-alpha +2 Bill McLaughlin	0	170	Jul 26, 2024
can't seem to take proper flats with asi 294mm Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)ZWO ASI294MM Pro Calibration +1 Claudio Boicu Last post: Observatório Astrográfico do Boqueirão	73	1.9k	Jul 25, 2024
Adding Luminance to SHO Narrowband Processing Luminance Narrowband +1 Craig Dixon Last post: Craig Dixon	9	336	Jul 17, 2024
Silk Nebula Discovered by Enthusiast Astronomers with QHY600M and QHY1920M Cameras OIII Narrowband H-alpha +1 Yilia Yu Last post: Yilia Yu	5	852	Jul 12, 2024
[RCC] Cygnus Loop in SHO Pleiades Astrophoto PixInsight SHO Narrowband +2 Byron Miller	0	67	Jul 6, 2024
[RCC] - Veil Nebula region in SHO Pleiades Astrophoto PixInsight Processing SHO +2 Rick Krejci Last post: Rick Krejci	11	510	Jun 24, 2024
[RCC] M17 Swan Nebula in Narrowband Russell Croman Astrophotography StarXTerminator Processing Narrowband +2 Antha Adkins Last post: Antha Adkins	32	1.4k	Jun 22, 2024
Hello from Perth Narrowband Introductions Deep Sky Kartik Atre Last post: AstroGinger	4	60	Jun 14, 2024
Please recommend l-extrême like filter. Optolong L-eNhance Optolong L-Pro Equipment +2 Eric Gagne Last post: Stefan Pfleger	18	457	Jun 5, 2024
Filters in series Filters Acquisition Narrowband +1 framoroIOTD Staff Last post: andrea tasselli	2	90	Jun 2, 2024
Which camera/filters are best for Bortle 1 Skies? Sky-Watcher Esprit 100ED Acquisition Narrowband +2 John Stone Last post: Gilmour Dickson	9	574	Jun 1, 2024
[RCC] M16 first light with Celestron LP filter Narrowband Duo-Narrowband Request for feedback Kevin Knight Last post: andrea tasselli	1	118	May 21, 2024
asi2600mm Duo (any practical experience?) ZWO ASI2600MM DUO Duo-Narrowband Narrowband Nick Grundy Last post: Dan Kohn	25	1.2k	May 8, 2024
Narrowband filter weird results Astro-Tech AT72EDII Filters Acquisition +2 Francois Donnet Last post: Francois Donnet	4	194	Apr 22, 2024

Showing 1-50 of 228