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Fringe Killer oder Minus-Violett-Filter ? - ATDS
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Color Correction & Minus Violet Filters - Filters | AgenaAstro.com
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Lumicon Minus Violet Filter-Visual or Astrophotography Only or Both? - Refractors - Cloudy Nights
Lumicon Sperrfilter Minus Violet 1,25''
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Welche Farbfilter für Planetenbeobachtung | Astronomie.de - Der Treffpunkt für Astronomie
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Nebelfilter
Teleskop-Express: Lumicon Minus Violett Filter - M72 - reduziert den Violettsaum
Lumicon | Minus Violet Filters – Cloud Break Optics
