COVID-19 DELIVERY INFO - We are operating as normal but there are shipping delays, please contact us to check delivery times, all deliveries are now contact-less. Stay safe.
Show Store Sections+
Home Telescopes Coronado Solar Telescopes Coronado AP185 Double Stack Adapter Plate
Coronado Adapter Plate #AP185. Required to double stack an SME40 external primary Etalon, double stacking an original 40mm Coronado or Coronado II telescope such as an SMT40 or PST. Telescope and double stacking filter sold separately.Reduces original .7 angstrom bandpass of the Hydrogen-Alpha telescope to .5 angstrom, dramatically increasing visibility of surface detail such as granularity and active regions on the surface of the Sun.