Coronado SolarMax III 70 Double Stack F/5.7 solar telescope with 10mm blocking filter

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The 70mm Coronado SolarMax III 70 DS dual-etalon solar telescope has a very narrow <0.5 Ã…ngstrom passband H-Alpha solar filter with unique RichView tuning. Its 10mm blocking filter provides you with extra-high contrast views and binoviews of solar surface features, as well as good views of solar prominences and more . . .