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Teleskop-Express: Hutech IDAS LPS-D1 Nebula Filter with filter thread 77 mm
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Light Pollution Suppression (LPS) Filters — AMATEUR ASTROPHOTOGRAPHY= Home
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IDAS LPS-P3 - 48mm (2") Mounted — Starizona
Bloated Stars in Luminance and Blue through a Refractor
Hutech IDAS LPS Transmission Curve.jpg?height=299&width=400
