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Corey S. Powell on Twitter: "Beautiful engineering: This is the filter wheel for MIRI, one of the Webb telescope's three imaging cameras. Each of the 18 elements here provides a distinct perspective
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SVBONY 2'' 5 Position Multiple Filter Wheel Filter for Telescope to CCD Camera w/ M48 to 2" T Adapter SV133|Monocular/Binoculars| - AliExpress
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Amazon.com: SDENSHI 1.25" 3-Position Color Filter Wheel W/Nebula Filter Plate for Telescopes : Electronics
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