Baader Fringe Killer Color Correction-Filter 2 inch #2458375The Fringe Killer (Fringe = colour fringing) blocks unfocused light in the red part of the spectrum (IR) uo to 100% but above all suppresses over 50% of the interfering stray light in the blue spectral range without changing the colour impression of the image. The most delicate details of lunar craters and planetary surfaces can be seen with a much higher contrast. The Baader Fringe Killer Color Correction Filter prevents unwanted colour fringes in