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solar filters
Altair Astro 2" DualBand Sii/Oiii 6nm Filter
$259.99
Get the Bundle with 2 filters HERE Advanced Dual-Band Filter Technology: The Altair Dual-Band ULTRA Sii/Oii is a cutting-edge narrowband filter with a tight 6nm FWHM Bandpass, designed for enhancing...
Altair Astro 2" HA/OIII DualBand 6nm Filter
$249.99
Get the Bundle with 2 filters HERE Advanced Dual-Band Filter Technology: The Altair Dual-Band ULTRA Sii/Oii is a cutting-edge narrowband filter with a tight 6nm FWHM Bandpass, designed for enhancing...
Altair 1.25 DualBand Sii/Oiii 6nm Filter
$169.99
Get the Bundle with 2 filters HERE Advanced Dual-Band Filter Technology: The Altair Dual-Band ULTRA Sii/Oii is a cutting-edge narrowband filter with a tight 6nm FWHM Bandpass, designed for enhancing...
Altair 1.25" DualBand Ha/Oiii 6nm Filters
$169.99
Get the Bundle with 2 filters HERE Advanced Dual-Band Filter Technology: The Altair Dual-Band ULTRA Sii/Oii is a cutting-edge narrowband filter with a tight 6nm FWHM Bandpass, designed for enhancing...
Altair 2nm G-Band Solar Contrast Filter - 1.25" 430.3nm
$219.99
IMPORTANT SAFETY INFORMATION: DO NOT USE THIS FILTER FOR DIRECT SOLAR OBSERVATION! Must be used together with a professional solar filter film or glass type, or Hershel Wedge with Max. 0.024%...
Altair 2nm G-Band Solar Contrast Filter - 2" 430.3nm
$319.99
IMPORTANT SAFETY INFORMATION: DO NOT USE THIS FILTER FOR DIRECT SOLAR OBSERVATION! Must be used together with a professional solar filter film or glass type, or Hershel Wedge with Max. 0.024%...
Altair 2nm CAK Solar Contrast Filter - 1.25"
$251.99
Another first for solar astronomy, the Altair CaK 2nm Solar filter enhances finer details in the solar photosphere. Contrast is enhanced, giving improved visibility of faculae against the photosphere, and between umbral...
Altair Solar Contrast Booster Filter 8nm - 540nm Continuum 1.25"
$75.99
The Altair 1.25" Solar Continuum filter Enhances sunspots, granulation, and fine photosphere detail. For use with Baader Solar Filter or Herschel Wedge. IMPORTANT SAFETY INFORMATION: DO NOT USE THIS FILTER...
Altair Ha Sii Oiii DualBand ULTRA 6nm Filter COMBO 2"
$493.99
Advanced Dual-Band Filter Technology: The Altair Dual-Band ULTRA Sii/Oii is a cutting-edge narrowband filter with a tight 6nm FWHM Bandpass, designed for enhancing nebula imaging. Effective Light Pollution Suppression: Incorporates...
Altair Ha Sii Oiii DualBand ULTRA 6nm Filter COMBO 1.25"
$337.99
Advanced Dual-Band Filter Technology: The Altair Dual-Band ULTRA Sii/Oii is a cutting-edge narrowband filter with a tight 6nm FWHM Bandpass, designed for enhancing nebula imaging. Effective Light Pollution Suppression: Incorporates...