Lunt Solar 19mm Solar Eyepiece - 1.25" - LS19EAbout the Lunt Solar Systems 19mm Solar Eyepiece 1. 25" The Lunt Solar Eyepiece series are coated with the same 0. 1% anti reflective coatings as on their h alpha etalons. The anti reflective coatings reduce ghosting and glow and aid in providing darker background. They also excel at lunar and planetary viewing as well as terrestrial objects. Lunt Solar Eyepieces have other great features as well, such as a safety groove cut in the barrel to help stop