NASA Webb Telescope on X: "2. Here, a @BallAerospace technician carefully removes Webb's "lens cap," which has kept the observatory's instruments protected and contaminant-free. With launch approaching, removing this cover gives engineers
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An OTA'S Dust/Lens Cap HOLE – What does the telescope designer expect us to do with it? - Beginners Forum (No Astrophotography) - Cloudy Nights
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Is this piece around the lens cap supposed to dip like that? : r/telescopes
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