Astronomik H-alpha 6nm CCD MaxFR 1.25" (M28.5) Filter for Fast Systems astrophotography camera things for classes or conferences

things for classes or conferences in advance

Food courts

generous 20mm eye relief

suitable for a large international convention

Astronomik H-alpha 6nm CCD MaxFR 1.25" (M28.5) Filter for Fast Systems astrophotography camera things for classes or conferencesAstronomik H alpha 6nm CCD MaxFR 1,25'' (M28,5) MaxFR Astronomik photographic narrowband emissionline filters for fast optical systems. There is an ever growing demand for filters suitable for extremely fast optical systems like Celestrons RASA and the Epsilon Astrographs made by Takahashi. Our novel MaxFR emission line filters are suitable up to very fast focal ratios. The new Astronomik MaxFR series of narrowband emission line filters is perfectly