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Coronado SolarMax II H-Alpha Etalon Filters
$699.99 - $2,639.00
$699.99 - $1,899.99
Accepted Payment
  • Double stacking H-Alpha etalon filters avalable in 40mm, 60mm, and 90mm sizes
  • Reduces the normal bandwidth of a SolarMax telescope or filter set from the single stack 0.7A performance to a more restrictive 0.5A
  • Helps increase visibility of surface detail and active regions on the Solar disc
  • Each etalon filter features the Coronado RichView tuning system
  • Please note: etalon filters CANNOT be used as a stand-alone solar filter or immediate and irreversible eye damage may result. An etalon filter MUST be combined with a primary SolarMax filter and blocking filter, complete Coronado SolarMax telescope, or a PST telescope.

These SolarMax II H-Alpha Filter Sets from Coronado, a Meade Instruments Company, include an etalon filter and blocking filter for safe solar observation and imaging in compatible telescopes. Each set includes a primary H-Alpha etalon filter and a blocking filter.
Coronado filters are used around the world by serious solar enthusiasts and professional research facilities alike. When properly and safely mounted on your high quality refractor or other suitable telescope these filter sets allow observation and imaging of the amazing and ever changing surface detail and prominences on the Sun in hydrogen-alpha (Ha) light. Custom mounting will be required (adapters not included).
The patented RichView tuning assembly allows direct tuning of the primary filter etalon. No other commercially available Ha 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. The stunning bright red views through a Coronado Ha telescope display astounding surface and limb detail especially when the Sun is in an active phase.

Limited Warranty against defects in materials or workmanship for five years from date of purchase. This warranty is provided by Meade for the benefit of the original retail purchaser only. For complete warranty details contact Meade at 800-626-3233.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.