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Baader Planetarium Yellow 495nm Long-Pass Filter 1.25 Eyepiece
Freedom from ghost images even when stacked
The Baader Planetarium Yellow Long-Pass Filter has 98 transmission efficiency and is superb for bright planet and cometary details
Can be placed anywhere in the optical path without introducing astigmatism or other defects
Striae-free substrates are polished parallel to within 30 seconds of arc to avoid wedge errors
Finest 7-layer hard multi-coatings on both faces feature 025 residual reflections
