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

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  1. Keith Dickinson

    new glasses

    What you had there was thermal shock, caused by the early coatings having a vastly different rate of expansion to the base material. The lens expands more than the coating causing the coating to break down over time. All multi-coated lenses should be cleaned with dedicated cleaners and not hot...
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