Doncaster Astronomical Society on Twitter: "The Horsehead Nebula - IC434 - taken by DAS member David Mckinstrey SGP, guiding with PHD2 Altair Astro 60mm guide scope ZWO ASI294mc pro CMOS Skywatcher EQ6
You may have a TriBand or QuadBand filter without knowing it. - Beginning Deep Sky Imaging - Cloudy Nights
Tri-band and other narrow band imaging of emission nebulae with a colour camera – Professor Morison's Astronomy Digest
Altair TriBand OSC CCD 2" Filter
Altair Dual-Band 7nm CMOS Nebula Filter 2"
Dual-band, tri-band, quad-band nebula filters - Imaging - Tips, Tricks and Techniques - Stargazers Lounge
Altair QuadBand OSC CCD 2" Filter - APM Telescopes Englisch
Altair Astro | Hi all, I'm trying to find out whether anyone here has had a chance to test out the new Altair quad-band filter on a fast scope like a RASA
Optolong L-eNhance Filter Review | Results, Specs, and Best Applications
Altair 2" 7nm Dual-Band OSC Filter (Ha & Oiii) | Land Sea & Sky
cheaper Triad filter? - Experienced Deep Sky Imaging - Cloudy Nights
Pacman nebula - Altair Quadband filter first light - Society for Popular Astronomy
The California Nebula (Quad Bandpass Filter) ( Toshiya Arai ) - AstroBin
We have a few kickstart filters... - Altair Astro Astronomy | Facebook
Altair TriBand OSC CCD 2" Filter
Light Pollution Filter Spectral Comparison - Beginning Deep Sky Imaging - Cloudy Nights
Altair TriBand 1 25" Filter
Altair QuadBand OSC CCD 2" Filter
M42 with Quadband filter - Imaging - Deep Sky - Stargazers Lounge
You may have a TriBand or QuadBand filter without knowing it. - Beginning Deep Sky Imaging - Cloudy Nights
Witches Broom - Altair Astro Quadband Filter - Imaging - Deep Sky - Stargazers Lounge
Altair 2" 7nm Dual-Band OSC Filter (Ha & Oiii) | Land Sea & Sky
Triad Narrowbandfilters - Getting Started With Imaging - Stargazers Lounge
.thumb.jpg.c82026436df91fe73d0ba826eee8edad.jpg "Advice - Dual, tri, quad band NB filters - Imaging - Deep Sky - Stargazers Lounge")
Advice - Dual, tri, quad band NB filters - Imaging - Deep Sky - Stargazers Lounge
Triad Narrowbandfilters - Page 2 - Getting Started With Imaging - Stargazers Lounge
