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Baader Filtro H-alpha/OIII/SII CMOS Narrowband 36mm
Astronomik H-alpha 12nm CCD T-Mount (M42x0,75)
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Baader Filtro solare SunDancer II H-alpha 2"/1,25"
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Optolong 1.25" Filter H-alpha 7nm Sii-ccd 6.5nm Oiii-ccd 6.5nm Narrow Band Astronomy Telescope Filters Kit For Deep Sky Ld1013a - Filter - AliExpress
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Baader Filtro H-alpha a banda stretta da 7nm FWHM, diametro 2" (50,8mm), con cella a basso profilo
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Filtro 36mm H-ALPHA 7nm Optolong Ø36mm non montati
")