Baader Red 610nm Long-Pass Filter - Round Mounted - FCFR- Dioptrx extreme portability and consistent performance

extreme portability and consistent performance in an affordable package

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Tele Vue 40mm Plossl Eyepieces deliver sharper images than any other brand of 4 or 5 element "Plossl" or Orthoscopic designs

Baseplate Dimensions: 2

Baader Red 610nm Long-Pass Filter - Round Mounted - FCFR- Dioptrx extreme portability and consistent performanceAbout the Baader Red 610nm Long Pass Filter Round Mounted Baader Planetarium astronomy filters by far supersede the mediocre quality of common "flame polished" color filters. A fine optical polish and 2 mm thick glass allows the Baader Red Filter to be inserted anywhere into the optical path without introducing astigmatism or other defects. For instance, they can be used in front of a binocular viewer without degrading the image in any way. Substrates