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Astro Essentials 1.25" #80A Medium Blue Filter | First Light Optics
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Telescope Accessory Kit #80a Blue #25 Red Crystalview Moon 1.25" Color/planetary Filter 2x Barlow Lens Omni 6mm 15mm Eyepiece - Telescope - AliExpress
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TPO #80A Medium Blue Filter & Case - 2" | OPT Telescopes
0.965 Inch Telescope Eyepiece Color Filter For Moon Lunar Planet Nebula # 80a - Decorative Telescopes - AliExpress
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20180628 Jupiter with blue filter - YouTube
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Lumicon 2 Inch #80A Light Blue Color Filter - Camera Concepts & Telescope Solutions
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USING FILTERS FOR LUNAR/PLANETARY OBSERVATION — Alpine Astronomical LLC
Amazon.com : Astromania 1.25" Color/Planetary Filter - #80A Blue : Electronics
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Telescope Filters Guide: All You Need To Know
