RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-19445
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June 13, 2023 at 12:31 am
#156480
TimingNotes 03339Participant
Case 30 — 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.