Baader Semi APO Filter 20244 ask your dealer

ask your dealer

"Refractors have long been coveted by many observers since the unobstructed optical system offers high contrast views much prized by lunar and planetary observers as well as many aspects of deep-sky viewing

25” adapter is included

and geographic features on the surface of the Moon

Baader Semi APO Filter 20244 ask your dealerPlanoptically Polished with Phantom Coating Group (PCG). Baader's newest addition for Achromat owners. The Semi APO works like it's name implies delivering an amazingly neutral view, while cutting most of the annoying and contrast robbing violet fringe that plagues all achromats. The Semi APO filter combines a stronger Fringe Killer coating formula with the Moon & Skyglow Neodymium substrate. The result is similar performance to the Fringe Killer +