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

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  1. tenex

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

    My left eye has a bit of yellow cast compared to the right, whereas Patudo just noted more of a red-green difference, which even sounds like a different mechanism. It would be interesting to investigate how large a disparity is typical, and what the extremes are. My town is now experimenting...