a simple and effective way to remove light pollution: Astrophotography Talk Forum Forum: Digital Photography Review
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Astronomik CLS Light Pollution Filter YES OR NO? - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights
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Amazon.com : SVBONY Telescope Filter 2 inches UHC Filter for Observations of Deep Sky Objects Ultra High Contrast Filter Reduce Light Pollution : Electronics
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