The new filter from Cyclops may be of interest..... basically a Continuum white light with added Ha, 10nm bandpass.
https://www.cyclopsoptics.com/astronomy ... ilter-48mm
New double wavelength filter OIII+Ha
- Merlin66
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New double wavelength filter OIII+Ha
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer