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Now that the sun is active again, I would like to begin using my refracting telescope with my Baader Astro solar visual filter. I purchased the filter material in 2011 and built my own cell. I used it successfully all through the previous solar cycle with last use in 2017. I have always stored the filter assembly in a plastic case to avoid damage. My question is does Baader Astro Solar film deteriorate with age? Is it still safe to use? What test should I perform before using it visually?
Question by: Don Anderson on Jan 16, 2023 5:56:00 AM | 1 Answer(s)
In description of Solar Viewer AstroSolar® Silver/Gold (film for naked eye without telescope) you mention 100% UV-protection and 100% IR-protection. Does also AstroSolar® Safety Film OD 5.0 which is for use for high magnifications with telescope, protects 100% from UV and IR radiation ?
Question by: Vag on Oct 5, 2022 6:49:00 AM | 1 Answer(s)
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