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RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-27341

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August 19, 2025 at 10:49 pm #220173
TimingNotes 07399
Participant

Case 18 — Crystal reflections: why a dark patch is not a coating test

No single lighting setup settles that question. Compare multiple controlled angles and describe the visible observation without asserting material specifications that have not been verified.