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particularly emission nebulae
high power views
crash helmet
Graded Aperture
Used IDAS LPS-P2 48mm filter (MBT & IGAD) USED particularly emission nebulaeCondition: This is a used IDAS light pollution suppression filter in very good condition. The optics are reasonably clean, with some minor spotting, and it comes in a jewel case. See the photos. Description: Light pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly
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