Coronado SolarMax II 40mm Double Stacking Etalon


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  • Regular price $799.99

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ECLIPSE ITEMS ARE NOT RETURNABLE Solar Eclipse Glasses, Solar Filters, Solar Telescopes, and other eclipse related accessories and memorabelia are not returnable due to the event based nature of these items.

  • A fantastic upgrade to your PST!
  • Designed to attach to an existing etalon, creating a double-stack system
  • Includes RichView tuning to boost contrast on the solar feature being observed
  • Threads directly onto the front cell of a PST, narrowing the bandpass to <0.5 Angstroms (Å)!
  • Not to be used standalone, must be combined with existing PST or SolarMax 40 and blocking filter (BF)

This add on etalon filter reduces the normal bandwidth of a PST, SolarMax 40 telescope, or filter set (etalon and Blocking Filter combination) from the single stack 0.7-1 Angstrom (Å) performance to a more restrictive 0.5Å, increasing visibility of surface detail and active regions on the Solar disc. Note that this etalon MUST be combined with a primary SolarMax 40 filter and blocking filter, complete Coronado SolarMax 40 telescope, or a PST telescope.

Includes patented RichView tuning assembly, which allows direct tuning of the primary filter etalon. This provides a contrast boost for the best possible views of active regions, filaments and surface detail, or quickly and easily re-tune for prominences on the solar limb. Upgrade your PST or SolarMax 40 to a double stack configuration for an even more amazing view of our closest star!

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.

Safe solar viewing requirements: Must be used with a blocking filter
T-max tuner: Yes
Warranty: Five year
    Barcode: 709942996708