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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
25" eyepieces with a metal thumbscrew
stereo and mono one-button switching
and a high optical density value indicates very low transmission
FM Radio Receiver
Astronomik OIII 12nm CCD MaxFR 50mm Filter for Deep Sky Imaging circle 25" eyepieces with a metalAstronomik OIII 12nm CCD MaxFR 50mm Filter Deep Sky Imaging MaxFR Astronomik photographic narrowband emission line filters are optimized for fast optical systems, such as Celestrons RASA and Takahashi Epsilon Astrographs. These filters are designed for high performance deep sky imaging and are ideal for capturing the three most important emission lines: oxygen (OIII), hydrogen (H alpha), and sulfur (SII). Available in both 12nm and 6nm bandwidth
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