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Daystar Energy Rejection Filters (ERF) reduce the heat load on your filter and optics assembly by absorbing/reflecting UltraViolet and/or Infrared light while transmitting light in the desired visual spectrum
Daystar Quark Prominence Filter
Both are available for the same low price
being only a little larger than your smartphone
Astrozap Meade 6" LXD75/55 Schmidt-Newtonian Flexible Dew Shield - AZ-100 User Experience_Intermediate Daystar Energy Rejection Filters (ERF)Flexible Dew Shield If you are looking for a perfect fit, a quality build, and an affordable all in one single product for passive dew fighting, the Astrozap Flexible Dew Shield is what you need. Flexible Dew Shield Features: All Night Clarity. No more ruined sky parties resulting from dew build up or excess stray light. Enjoy long and clear observation sessions. Passive Dew Fighter. The product's physical design will eliminate dew from forming on