The built-in LPS filter of the Seestar S50 is unfortunately not always the best choice for limiting particularly high light pollution or emphasising particularly interesting regions such as Ha or OIII. This adaptation allows you to use any 2" filter with the Seestar and thus adapt it to your own field of application. Use Ha or OIII filters to completely exclude the disturbing light. Use LPS or UHC filters to obtain particularly high-contrast images and to significantly limit light pollution.