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

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  1. J

    Pentax VM 6x21 WP Monocular/ 18x Microscope

    Hi, when I saw this I was quite sure it must be a porro until I found the design drawing... most peculiar. Phase coated roof prisms seem to a big selling point - regardless whether they are useful or not. The other item in the series, a 4x20 IF roof pair is even stranger... you can take the...
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