The Baader Planetarium 8.5 nm OIII CCD Filter delivers the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III and Sulfur-II, with the shortest exposures possible. Their ultra-narrow bandwidths have extr...

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Product Review

The Baader Planetarium 8.5 nm OIII CCD Filter delivers the absolute highest contrast deep sky images in H-Alpha, H-Beta, Oxygen III and Sulfur-II, with the shortest exposures possible. Their ultra-narrow bandwidths have extremely high transmissions, while

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