IDAS Light Pollution Suppression (LPS) Filters 48mm - P2 - Made in Japan! (Pre-Owned) Explore Eyepiece Sale 9 Doublet APO OTA from

9 Doublet APO OTA from William Optics is provided in a Gold color finish

Bandpass: 610nm

/ 3m close focus satisfies birding field optic requirements

an "eyepiece view" image to confirm youre seeing it

the Long Perng 9mm 80-degree Lanthanum eyepiece is your ticket to a front-row seat for high-magnification deep-sky exploration

IDAS Light Pollution Suppression (LPS) Filters 48mm - P2 - Made in Japan! (Pre-Owned) Explore Eyepiece Sale 9 Doublet APO OTA fromUsed, still in great condition. IDAS Light Pollution Suppression (LPS) Filters 48mm P2 (Pre Owned) 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 emission nebulae. Unlike other light pollution suppression filters, IDAS filters are