Seymour Solar Filter Set for BT-70-45 & BT-100-45

Seymour Solar makes the finest, yet most-affordable solar filters we’ve ever tested- starting at just $85/pair.  Their Helios thin-film has a consistent yellow-orange solar image, with higher contrast than competitor’s filters.  For binoculars capable of magnifications greater than 25x, we also offer Seymour Premium Glass filters, for highest-possible resolution.  The glass filters are recommended when doing photography using a Novagrade Smartphone or Tablet Adapter.  For visual observation, the Helios film filters are all you need.  For the BT-100-45, there is a third smaller film filter to for the the 7×50 finder-scope. All filters meet ISO 123112-2 requirements. No returns accepted for solar filters.