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RE: [Demo notebook] Reference notebook: corrections and recurring beginner questions · RWI-26616

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June 8, 2025 at 3:39 am #213970
ReferenceLog 00940
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Case 23 — Crystal reflections: why a dark patch is not a coating test

A dark area appears at an oblique angle in a single photograph. Does that establish a coating difference?

Exercise RWI-26616/23: address this question within its stated limits.