Baader Semi APO Filter 20244 Pop-up rubber eyeguards provide comfort

Pop-up rubber eyeguards provide comfort and increase contrast

and geographic features on the surface of the Moon

the price therefore initially may appear high for "nothing more than" a clamping device

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The telescope OTA can be quickly and easily separated from the base unit for convenient transportation

Baader Semi APO Filter 20244 Pop-up rubber eyeguards provide comfortPlanoptically 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 +