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Coronado SolarMax II H-Alpha Filter Sets
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  • Hydrogen-alpha filter sets available in 40mm, 60mm and 90mm sizes
  • Sets include a primary H-Alpha etalon filter and blocking filter
  • Each etalon filter features the Coronado RichView tuning system
  • When properly mounted on your high quality refractor or other suitable telescope these filter sets allow safe observation and imaging of surface detail and prominences on the Sun in hydrogen-alpha (Ha) light
  • Coronado filters are used around the world by serious solar enthusiasts and professional research facilities alike

These add-on filters reduces the normal bandwidth of a Coronado SolarMax  telescope or filter set from the single stack .7A performance to a more restrictive .5A, increasing visibility of surface detail and active regions on the Solar disc. MUST be combined with a primary SolarMax filter and blocking filter, complete Coronado SolarMax 40 telescope, or a PST telescope.
Each Coronado etalon filter includes the patented RichView tuning assembly which allows direct tuning of the primary filter etalon. No other commercially available Hydrogen-alpha (H-alpha) telescope can provide the tuning range and accuracy of the SolarMax II. Now you can tune for the highest contrast views of active regions, filaments and surface detail, or quickly and easily re-tune for prominences on the solar limb.
Please note: these filters CANNOT be used as a stand alone solar filter. Immediate and irreversible eye damage may result.