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OPT proudly carries Astrodon telescope filters and accessories. These filters are considered to have the best performance and quality in the astrophotography market. Choose from our wide selection of research-grade photometric (UVBRI, Sloan, and Exoplanet) telescope filters, narrowband filters, sensor Matched LRGB filters and a variety of telescope camera accessories. At OPT, we stand by Astrodon’s mission to "simplify your imaging" and are confident that our selection of Astrodon products will fulfill all of your astro-imaging or research needs.