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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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    "David Bowie" special eye lenses (will your eyes tell the difference?)

    As best as I can gather, the colour of the reflections from modern multi-coatings doesn't have a relationship with the area of the colour spectrum (if any) favoured. With the old single coatings the colour of the reflections did indicate that more of that wavelength was reflected away - so a...